update apc.php for PHP8+

1 files changed, 779 insertions, 759 deletions

diff --git a/admin/apc.php b/admin/apc.php
index 693ed15..e0accd6 100644
--- a/admin/apc.php
+++ b/admin/apc.php
@@ -22,8 +22,6 @@
 
  */
 
-$VERSION='$Id$';
-
 require_once( '../../kernel/includes/setup_inc.php' );
 
 global $gBitUser;
@@ -35,24 +33,24 @@ if (file_exists("apc.conf.php")) include("apc.conf.php");
 
 ////////// BEGIN OF DEFAULT CONFIG AREA ///////////////////////////////////////////////////////////
 
-defaults('USE_AUTHENTICATION',0);			// Use (internal) authentication - best choice if
-											// no other authentication is available
-											// If set to 0:
-											//  There will be no further authentication. You
-											//  will have to handle this by yourself!
-											// If set to 1:
-											//  You need to change ADMIN_PASSWORD to make
-											//  this work!
-defaults('ADMIN_USERNAME','apc'); 			// Admin Username
-defaults('ADMIN_PASSWORD','password');  	// Admin Password - CHANGE THIS TO ENABLE!!!
+defaults('USE_AUTHENTICATION',0);           // Use (internal) authentication - best choice if
+                                            // no other authentication is available
+                                            // If set to 0:
+                                            //  There will be no further authentication. You
+                                            //  will have to handle this by yourself!
+                                            // If set to 1:
+                                            //  You need to change ADMIN_PASSWORD to make
+                                            //  this work!
+defaults('ADMIN_USERNAME','apc');           // Admin Username
+defaults('ADMIN_PASSWORD','password');      // Admin Password - CHANGE THIS TO ENABLE!!!
 
 // (beckerr) I'm using a clear text password here, because I've no good idea how to let
 //           users generate a md5 or crypt password in a easy way to fill it in above
 
-//defaults('DATE_FORMAT', "d.m.Y H:i:s");	// German
-defaults('DATE_FORMAT', 'Y/m/d H:i:s'); 	// US
+//defaults('DATE_FORMAT', "d.m.Y H:i:s");   // German
+defaults('DATE_FORMAT', 'Y/m/d H:i:s');     // US
 
-defaults('GRAPH_SIZE',200);					// Image size
+defaults('GRAPH_SIZE',200);                 // Image size
 
 //defaults('PROXY', 'tcp://127.0.0.1:8080');
 
@@ -61,7 +59,7 @@ defaults('GRAPH_SIZE',200);					// Image size
 
 // "define if not defined"
 function defaults($d,$v) {
-	if (!defined($d)) define($d,$v); // or just @define(...)
+    if (!defined($d)) define($d,$v); // or just @define(...)
 }
 
 // rewrite $PHP_SELF to block XSS attacks
@@ -71,7 +69,7 @@ $time = time();
 $host = php_uname('n');
 if($host) { $host = '('.$host.')'; }
 if (isset($_SERVER['SERVER_ADDR'])) {
-  $host .= ' ('.$_SERVER['SERVER_ADDR'].')';
+    $host .= ' ('.$_SERVER['SERVER_ADDR'].')';
 }
 
 // operation constants
@@ -81,116 +79,117 @@ define('OB_VERSION_CHECK',3);
 
 // check validity of input variables
 $vardom=array(
-	'OB'	=> '/^\d+$/',			// operational mode switch
-	'CC'	=> '/^[01]$/',			// clear cache requested
-	'DU'	=> '/^.*$/',			// Delete User Key
-	'SH'	=> '/^[a-z0-9]+$/',		// shared object description
+    'OB'    => '/^\d+$/',           // operational mode switch
+    'CC'    => '/^[01]$/',          // clear cache requested
+    'DU'    => '/^.*$/',            // Delete User Key
+    'SH'    => '/^[a-z0-9]+$/',     // shared object description
 
-	'IMG'	=> '/^[123]$/',			// image to generate
-	'LO'	=> '/^1$/',				// login requested
+    'IMG'   => '/^[123]$/',         // image to generate
+    'LO'    => '/^1$/',             // login requested
 
-	'COUNT'	=> '/^\d+$/',			// number of line displayed in list
-	'SCOPE'	=> '/^[AD]$/',			// list view scope
-	'SORT1'	=> '/^[AHSMCDTZ]$/',	// first sort key
-	'SORT2'	=> '/^[DA]$/',			// second sort key
-	'AGGR'	=> '/^\d+$/',			// aggregation by dir level
-	'SEARCH'	=> '~^[a-zA-Z0-9/_.-]*$~'			// aggregation by dir level
+    'COUNT' => '/^\d+$/',           // number of line displayed in list
+    'SCOPE' => '/^[AD]$/',          // list view scope
+    'SORT1' => '/^[AHSMCDTZ]$/',    // first sort key
+    'SORT2' => '/^[DA]$/',          // second sort key
+    'AGGR'  => '/^\d+$/',           // aggregation by dir level
+    'SEARCH' => '/^.*$/'            // search regex
 );
 
 // cache scope
 $scope_list=array(
-	'A' => 'cache_list',
-	'D' => 'deleted_list'
+    'A' => 'cache_list',
+    'D' => 'deleted_list'
 );
 
 // handle POST and GET requests
 if (empty($_REQUEST)) {
-	if (!empty($_GET) && !empty($_POST)) {
-		$_REQUEST = array_merge($_GET, $_POST);
-	} else if (!empty($_GET)) {
-		$_REQUEST = $_GET;
-	} else if (!empty($_POST)) {
-		$_REQUEST = $_POST;
-	} else {
-		$_REQUEST = array();
-	}
+    if (!empty($_GET) && !empty($_POST)) {
+        $_REQUEST = array_merge($_GET, $_POST);
+    } else if (!empty($_GET)) {
+        $_REQUEST = $_GET;
+    } else if (!empty($_POST)) {
+        $_REQUEST = $_POST;
+    } else {
+        $_REQUEST = array();
+    }
 }
 
 // check parameter syntax
 foreach($vardom as $var => $dom) {
-	if (!isset($_REQUEST[$var])) {
-		$MYREQUEST[$var]=NULL;
-	} else if (!is_array($_REQUEST[$var]) && preg_match($dom.'D',$_REQUEST[$var])) {
-		$MYREQUEST[$var]=$_REQUEST[$var];
-	} else {
-		$MYREQUEST[$var]=$_REQUEST[$var]=NULL;
-	}
+    if (!isset($_REQUEST[$var])) {
+        $MYREQUEST[$var]=null;
+    } else if (!is_array($_REQUEST[$var]) && preg_match($dom.'D',$_REQUEST[$var])) {
+        $MYREQUEST[$var]=$_REQUEST[$var];
+    } else {
+        $MYREQUEST[$var]=$_REQUEST[$var]=null;
+    }
 }
 
-// check parameter sematics
+// check parameter semantics
 if (empty($MYREQUEST['SCOPE'])) $MYREQUEST['SCOPE']="A";
 if (empty($MYREQUEST['SORT1'])) $MYREQUEST['SORT1']="H";
 if (empty($MYREQUEST['SORT2'])) $MYREQUEST['SORT2']="D";
-if (empty($MYREQUEST['OB']))	$MYREQUEST['OB']=OB_HOST_STATS;
+if (empty($MYREQUEST['OB']))    $MYREQUEST['OB']=OB_HOST_STATS;
 if (!isset($MYREQUEST['COUNT'])) $MYREQUEST['COUNT']=20;
 if (!isset($scope_list[$MYREQUEST['SCOPE']])) $MYREQUEST['SCOPE']='A';
 
 $MY_SELF=
-	"$PHP_SELF".
-	"?SCOPE=".$MYREQUEST['SCOPE'].
-	"&SORT1=".$MYREQUEST['SORT1'].
-	"&SORT2=".$MYREQUEST['SORT2'].
-	"&COUNT=".$MYREQUEST['COUNT'];
+    "$PHP_SELF".
+    "?SCOPE=".$MYREQUEST['SCOPE'].
+    "&SORT1=".$MYREQUEST['SORT1'].
+    "&SORT2=".$MYREQUEST['SORT2'].
+    "&COUNT=".$MYREQUEST['COUNT'];
 $MY_SELF_WO_SORT=
-	"$PHP_SELF".
-	"?SCOPE=".$MYREQUEST['SCOPE'].
-	"&COUNT=".$MYREQUEST['COUNT'];
+    "$PHP_SELF".
+    "?SCOPE=".$MYREQUEST['SCOPE'].
+    "&COUNT=".$MYREQUEST['COUNT'];
 
 // authentication needed?
 //
 if (!USE_AUTHENTICATION) {
-	$AUTHENTICATED=1;
+    $AUTHENTICATED=1;
 } else {
-	$AUTHENTICATED=0;
-	if (ADMIN_PASSWORD!='password' && ($MYREQUEST['LO'] == 1 || isset($_SERVER['PHP_AUTH_USER']))) {
+    $AUTHENTICATED=0;
+    if (ADMIN_PASSWORD!='password' && ($MYREQUEST['LO'] == 1 || isset($_SERVER['PHP_AUTH_USER']))) {
 
-		if (!isset($_SERVER['PHP_AUTH_USER']) ||
-			!isset($_SERVER['PHP_AUTH_PW']) ||
-			$_SERVER['PHP_AUTH_USER'] != ADMIN_USERNAME ||
-			$_SERVER['PHP_AUTH_PW'] != ADMIN_PASSWORD) {
-			Header("WWW-Authenticate: Basic realm=\"APC Login\"");
-			Header("HTTP/1.0 401 Unauthorized");
+        if (!isset($_SERVER['PHP_AUTH_USER']) ||
+            !isset($_SERVER['PHP_AUTH_PW']) ||
+            $_SERVER['PHP_AUTH_USER'] != ADMIN_USERNAME ||
+            $_SERVER['PHP_AUTH_PW'] != ADMIN_PASSWORD) {
+            Header("WWW-Authenticate: Basic realm=\"APC Login\"");
+            Header("HTTP/1.0 401 Unauthorized");
 
-			echo <<<EOB
-				<html><body>
-				<h1>Rejected!</h1>
-				<big>Wrong Username or Password!</big><br/>&nbsp;<br/>&nbsp;
-				<big><a href='$PHP_SELF?OB={$MYREQUEST['OB']}'>Continue...</a></big>
-				</body></html>
+            echo <<<EOB
+                <html><body>
+                <h1>Rejected!</h1>
+                <big>Wrong Username or Password!</big><br/>&nbsp;<br/>&nbsp;
+                <big><a href='$PHP_SELF?OB={$MYREQUEST['OB']}'>Continue...</a></big>
+                </body></html>
 EOB;
-			exit;
+            exit;
 
-		} else {
-			$AUTHENTICATED=1;
-		}
-	}
+        } else {
+            $AUTHENTICATED=1;
+        }
+    }
 }
 
 // clear cache
 if ($AUTHENTICATED && isset($MYREQUEST['CC']) && $MYREQUEST['CC']) {
-	apcu_clear_cache();
+    apcu_clear_cache();
 }
 
 if ($AUTHENTICATED && !empty($MYREQUEST['DU'])) {
-	apcu_delete($MYREQUEST['DU']);
+    apcu_delete($MYREQUEST['DU']);
 }
 
 if(!function_exists('apcu_cache_info')) {
-	echo "No cache info available.  APC does not appear to be running.";
+    echo "No cache info available.  APC does not appear to be running.";
   exit;
 }
 
-$cache = apcu_cache_info();
+$limited = $MYREQUEST['OB'] != OB_USER_CACHE;
+$cache = apcu_cache_info($limited);
 
 $mem=apcu_sma_info();
 
@@ -225,286 +224,291 @@ function duration($ts) {
 // create graphics
 //
 function graphics_avail() {
-	return extension_loaded('gd');
+    return extension_loaded('gd');
 }
 if (isset($MYREQUEST['IMG']))
 {
-	if (!graphics_avail()) {
-		exit(0);
-	}
+    if (!graphics_avail()) {
+        exit(0);
+    }
 
-	function fill_arc($im, $centerX, $centerY, $diameter, $start, $end, $color1,$color2,$text='',$placeindex=0) {
-		$r=$diameter/2;
-		$w=deg2rad((360+$start+($end-$start)/2)%360);
+    function fill_arc($im, $centerX, $centerY, $diameter, $start, $end, $color1,$color2,$text='',$placeindex=0) {
+        $r=$diameter/2;
+        $w=deg2rad(round(360+$start+($end-$start)/2)%360);
 
+        if (function_exists("imagefilledarc")) {
+            // exists only if GD 2.0.1 is available
+            imagefilledarc($im, $centerX+1, $centerY+1, $diameter, $diameter, round($start), round($end), $color1, IMG_ARC_PIE);
+            imagefilledarc($im, $centerX, $centerY, $diameter, $diameter, round($start), round($end), $color2, IMG_ARC_PIE);
+            imagefilledarc($im, $centerX, $centerY, $diameter, $diameter, round($start), round($end), $color1, IMG_ARC_NOFILL|IMG_ARC_EDGED);
+        } else {
+            imagearc($im, $centerX, $centerY, $diameter, $diameter, round($start), round($end), $color2);
+            imageline($im, $centerX, $centerY, $centerX + round(cos(deg2rad($start)) * $r), $centerY + round(sin(deg2rad($start)) * $r), $color2);
+            imageline($im, $centerX, $centerY, $centerX + round(cos(deg2rad($start+1)) * $r), $centerY + round(sin(deg2rad($start)) * $r), $color2);
+            imageline($im, $centerX, $centerY, $centerX + round(cos(deg2rad($end-1)) * $r), $centerY + round(sin(deg2rad($end)) * $r), $color2);
+            imageline($im, $centerX, $centerY, $centerX + round(cos(deg2rad($end)) * $r), $centerY + round(sin(deg2rad($end)) * $r), $color2);
+            imagefill($im,$centerX + round($r*cos($w)/2), $centerY + round($r*sin($w)/2), $color2);
+        }
+        if ($text) {
+            if ($placeindex>0) {
+                imageline($im,$centerX + round($r*cos($w)/2), $centerY + round($r*sin($w)/2),$diameter, $placeindex*12,$color1);
+                imagestring($im,4,$diameter, $placeindex*12,$text,$color1);
 
-		if (function_exists("imagefilledarc")) {
-			// exists only if GD 2.0.1 is avaliable
-			imagefilledarc($im, $centerX+1, $centerY+1, $diameter, $diameter, $start, $end, $color1, IMG_ARC_PIE);
-			imagefilledarc($im, $centerX, $centerY, $diameter, $diameter, $start, $end, $color2, IMG_ARC_PIE);
-			imagefilledarc($im, $centerX, $centerY, $diameter, $diameter, $start, $end, $color1, IMG_ARC_NOFILL|IMG_ARC_EDGED);
-		} else {
-			imagearc($im, $centerX, $centerY, $diameter, $diameter, $start, $end, $color2);
-			imageline($im, $centerX, $centerY, $centerX + cos(deg2rad($start)) * $r, $centerY + sin(deg2rad($start)) * $r, $color2);
-			imageline($im, $centerX, $centerY, $centerX + cos(deg2rad($start+1)) * $r, $centerY + sin(deg2rad($start)) * $r, $color2);
-			imageline($im, $centerX, $centerY, $centerX + cos(deg2rad($end-1))   * $r, $centerY + sin(deg2rad($end))   * $r, $color2);
-			imageline($im, $centerX, $centerY, $centerX + cos(deg2rad($end))   * $r, $centerY + sin(deg2rad($end))   * $r, $color2);
-			imagefill($im,$centerX + $r*cos($w)/2, $centerY + $r*sin($w)/2, $color2);
-		}
-		if ($text) {
-			if ($placeindex>0) {
-				imageline($im,$centerX + $r*cos($w)/2, $centerY + $r*sin($w)/2,$diameter, $placeindex*12,$color1);
-				imagestring($im,4,$diameter, $placeindex*12,$text,$color1);
+            } else {
+                imagestring($im,4,$centerX + round($r*cos($w)/2), $centerY + round($r*sin($w)/2),$text,$color1);
+            }
+        }
+    }
 
-			} else {
-				imagestring($im,4,$centerX + $r*cos($w)/2, $centerY + $r*sin($w)/2,$text,$color1);
-			}
-		}
-	}
+    function text_arc($im, $centerX, $centerY, $diameter, $start, $end, $color1,$text,$placeindex=0) {
+        $r=$diameter/2;
+        $w=deg2rad((360+round($start)+round(($end-$start)/2))%360);
 
-	function text_arc($im, $centerX, $centerY, $diameter, $start, $end, $color1,$text,$placeindex=0) {
-		$r=$diameter/2;
-		$w=deg2rad((360+$start+($end-$start)/2)%360);
+        if ($placeindex>0) {
+            imageline($im,$centerX + round($r*cos($w)/2), $centerY + round($r*sin($w)/2),$diameter, $placeindex*12,$color1);
+            imagestring($im,4,$diameter, $placeindex*12,$text,$color1);
 
-		if ($placeindex>0) {
-			imageline($im,$centerX + $r*cos($w)/2, $centerY + $r*sin($w)/2,$diameter, $placeindex*12,$color1);
-			imagestring($im,4,$diameter, $placeindex*12,$text,$color1);
+        } else {
+            imagestring($im,4,$centerX + round($r*cos($w)/2), $centerY + round($r*sin($w)/2),$text,$color1);
+        }
+    }
 
-		} else {
-			imagestring($im,4,$centerX + $r*cos($w)/2, $centerY + $r*sin($w)/2,$text,$color1);
-		}
-	}
+    function fill_box($im, $x, $y, $w, $h, $color1, $color2,$text='',$placeindex='') {
+        global $col_black;
 
-	function fill_box($im, $x, $y, $w, $h, $color1, $color2,$text='',$placeindex='') {
-		global $col_black;
-		$x1=$x+$w-1;
-		$y1=$y+$h-1;
+        $x = round($x);
+        $y = round($y);
+        $w = round($w);
+        $h = round($h);
 
-		imagerectangle($im, $x, $y1, $x1+1, $y+1, $col_black);
-		if($y1>$y) imagefilledrectangle($im, $x, $y, $x1, $y1, $color2);
-		else imagefilledrectangle($im, $x, $y1, $x1, $y, $color2);
-		imagerectangle($im, $x, $y1, $x1, $y, $color1);
-		if ($text) {
-			if ($placeindex>0) {
+        $x1=$x+$w-1;
+        $y1=$y+$h-1;
 
-				if ($placeindex<16)
-				{
-					$px=5;
-					$py=$placeindex*12+6;
-					imagefilledrectangle($im, $px+90, $py+3, $px+90-4, $py-3, $color2);
-					imageline($im,$x,$y+$h/2,$px+90,$py,$color2);
-					imagestring($im,2,$px,$py-6,$text,$color1);
+        imagerectangle($im, $x, $y1, $x1+1, $y+1, $col_black);
+        if($y1>$y) imagefilledrectangle($im, $x, $y, $x1, $y1, $color2);
+        else imagefilledrectangle($im, $x, $y1, $x1, $y, $color2);
+        imagerectangle($im, $x, $y1, $x1, $y, $color1);
+        if ($text) {
+            if ($placeindex>0) {
 
-				} else {
-					if ($placeindex<31) {
-						$px=$x+40*2;
-						$py=($placeindex-15)*12+6;
-					} else {
-						$px=$x+40*2+100*intval(($placeindex-15)/15);
-						$py=($placeindex%15)*12+6;
-					}
-					imagefilledrectangle($im, $px, $py+3, $px-4, $py-3, $color2);
-					imageline($im,$x+$w,$y+$h/2,$px,$py,$color2);
-					imagestring($im,2,$px+2,$py-6,$text,$color1);
-				}
-			} else {
-				imagestring($im,4,$x+5,$y1-16,$text,$color1);
-			}
-		}
-	}
+                if ($placeindex<16)
+                {
+                    $px=5;
+                    $py=$placeindex*12+6;
+                    imagefilledrectangle($im, $px+90, $py+3, $px+90-4, $py-3, $color2);
+                    imageline($im,$x,$y+round($h/2),$px+90,$py,$color2);
+                    imagestring($im,2,$px,$py-6,$text,$color1);
 
+                } else {
+                    if ($placeindex<31) {
+                        $px=$x+40*2;
+                        $py=($placeindex-15)*12+6;
+                    } else {
+                        $px=$x+40*2+100*intval(($placeindex-15)/15);
+                        $py=($placeindex%15)*12+6;
+                    }
+                    imagefilledrectangle($im, $px, $py+3, $px-4, $py-3, $color2);
+                    imageline($im,$x+$w,$y+round($h/2),$px,$py,$color2);
+                    imagestring($im,2,$px+2,$py-6,$text,$color1);
+                }
+            } else {
+                imagestring($im,4,$x+5,$y1-16,$text,$color1);
+            }
+        }
+    }
 
-	$size = GRAPH_SIZE; // image size
-	if ($MYREQUEST['IMG']==3)
-		$image = imagecreate(2*$size+150, $size+10);
-	else
-		$image = imagecreate($size+50, $size+10);
 
-	$col_white = imagecolorallocate($image, 0xFF, 0xFF, 0xFF);
-	$col_red   = imagecolorallocate($image, 0xD0, 0x60,  0x30);
-	$col_green = imagecolorallocate($image, 0x60, 0xF0, 0x60);
-	$col_black = imagecolorallocate($image,   0,   0,   0);
-	imagecolortransparent($image,$col_white);
+    $size = GRAPH_SIZE; // image size
+    if ($MYREQUEST['IMG']==3)
+        $image = imagecreate(2*$size+150, $size+10);
+    else
+        $image = imagecreate($size+50, $size+10);
 
-	switch ($MYREQUEST['IMG']) {
+    $col_white = imagecolorallocate($image, 0xFF, 0xFF, 0xFF);
+    $col_red   = imagecolorallocate($image, 0xD0, 0x60,  0x30);
+    $col_green = imagecolorallocate($image, 0x60, 0xF0, 0x60);
+    $col_black = imagecolorallocate($image,   0,   0,   0);
+    imagecolortransparent($image,$col_white);
 
-	case 1:
-		$s=$mem['num_seg']*$mem['seg_size'];
-		$a=$mem['avail_mem'];
-		$x=$y=$size/2;
-		$fuzz = 0.000001;
+    switch ($MYREQUEST['IMG']) {
 
-		// This block of code creates the pie chart.  It is a lot more complex than you
-		// would expect because we try to visualize any memory fragmentation as well.
-		$angle_from = 0;
-		$string_placement=array();
-		for($i=0; $i<$mem['num_seg']; $i++) {
-			$ptr = 0;
-			$free = $mem['block_lists'][$i];
-			uasort($free, 'block_sort');
-			foreach($free as $block) {
-				if($block['offset']!=$ptr) {       // Used block
-					$angle_to = $angle_from+($block['offset']-$ptr)/$s;
-					if(($angle_to+$fuzz)>1) $angle_to = 1;
-					if( ($angle_to*360) - ($angle_from*360) >= 1) {
-						fill_arc($image,$x,$y,$size,$angle_from*360,$angle_to*360,$col_black,$col_red);
-						if (($angle_to-$angle_from)>0.05) {
-							array_push($string_placement, array($angle_from,$angle_to));
-						}
-					}
-					$angle_from = $angle_to;
-				}
-				$angle_to = $angle_from+($block['size'])/$s;
-				if(($angle_to+$fuzz)>1) $angle_to = 1;
-				if( ($angle_to*360) - ($angle_from*360) >= 1) {
-					fill_arc($image,$x,$y,$size,$angle_from*360,$angle_to*360,$col_black,$col_green);
-					if (($angle_to-$angle_from)>0.05) {
-						array_push($string_placement, array($angle_from,$angle_to));
-					}
-				}
-				$angle_from = $angle_to;
-				$ptr = $block['offset']+$block['size'];
-			}
-			if ($ptr < $mem['seg_size']) { // memory at the end
-				$angle_to = $angle_from + ($mem['seg_size'] - $ptr)/$s;
-				if(($angle_to+$fuzz)>1) $angle_to = 1;
-				fill_arc($image,$x,$y,$size,$angle_from*360,$angle_to*360,$col_black,$col_red);
-				if (($angle_to-$angle_from)>0.05) {
-					array_push($string_placement, array($angle_from,$angle_to));
-				}
-			}
-		}
-		foreach ($string_placement as $angle) {
-			text_arc($image,$x,$y,$size,$angle[0]*360,$angle[1]*360,$col_black,bsize($s*($angle[1]-$angle[0])));
-		}
-		break;
+    case 1:
+        $s=$mem['num_seg']*$mem['seg_size'];
+        $a=$mem['avail_mem'];
+        $x=$y=$size/2;
+        $fuzz = 0.000001;
+
+        // This block of code creates the pie chart.  It is a lot more complex than you
+        // would expect because we try to visualize any memory fragmentation as well.
+        $angle_from = 0;
+        $string_placement=array();
+        for($i=0; $i<$mem['num_seg']; $i++) {
+            $ptr = 0;
+            $free = $mem['block_lists'][$i];
+            uasort($free, 'block_sort');
+            foreach($free as $block) {
+                if($block['offset']!=$ptr) {       // Used block
+                    $angle_to = $angle_from+($block['offset']-$ptr)/$s;
+                    if(($angle_to+$fuzz)>1) $angle_to = 1;
+                    if( ($angle_to*360) - ($angle_from*360) >= 1) {
+                        fill_arc($image,$x,$y,$size,$angle_from*360,$angle_to*360,$col_black,$col_red);
+                        if (($angle_to-$angle_from)>0.05) {
+                            array_push($string_placement, array($angle_from,$angle_to));
+                        }
+                    }
+                    $angle_from = $angle_to;
+                }
+                $angle_to = $angle_from+($block['size'])/$s;
+                if(($angle_to+$fuzz)>1) $angle_to = 1;
+                if( ($angle_to*360) - ($angle_from*360) >= 1) {
+                    fill_arc($image,$x,$y,$size,$angle_from*360,$angle_to*360,$col_black,$col_green);
+                    if (($angle_to-$angle_from)>0.05) {
+                        array_push($string_placement, array($angle_from,$angle_to));
+                    }
+                }
+                $angle_from = $angle_to;
+                $ptr = $block['offset']+$block['size'];
+            }
+            if ($ptr < $mem['seg_size']) { // memory at the end
+                $angle_to = $angle_from + ($mem['seg_size'] - $ptr)/$s;
+                if(($angle_to+$fuzz)>1) $angle_to = 1;
+                fill_arc($image,$x,$y,$size,$angle_from*360,$angle_to*360,$col_black,$col_red);
+                if (($angle_to-$angle_from)>0.05) {
+                    array_push($string_placement, array($angle_from,$angle_to));
+                }
+            }
+        }
+        foreach ($string_placement as $angle) {
+            text_arc($image,$x,$y,$size,$angle[0]*360,$angle[1]*360,$col_black,bsize($s*($angle[1]-$angle[0])));
+        }
+        break;
 
-	case 2:
-		$s=$cache['num_hits']+$cache['num_misses'];
-		$a=$cache['num_hits'];
+    case 2:
+        $s=$cache['num_hits']+$cache['num_misses'];
+        $a=$cache['num_hits'];
 
-		fill_box($image, 30,$size,50,$s ? (-$a*($size-21)/$s) : 0,$col_black,$col_green,sprintf("%.1f%%",$s ? $cache['num_hits']*100/$s : 0));
-		fill_box($image,130,$size,50,$s ? -max(4,($s-$a)*($size-21)/$s) : 0,$col_black,$col_red,sprintf("%.1f%%",$s ? $cache['num_misses']*100/$s : 0));
-		break;
+        fill_box($image, 30,$size,50,$s ? (-$a*($size-21)/$s) : 0,$col_black,$col_green,sprintf("%.1f%%",$s ? $cache['num_hits']*100/$s : 0));
+        fill_box($image,130,$size,50,$s ? -max(4,($s-$a)*($size-21)/$s) : 0,$col_black,$col_red,sprintf("%.1f%%",$s ? $cache['num_misses']*100/$s : 0));
+        break;
 
-	case 3:
-		$s=$mem['num_seg']*$mem['seg_size'];
-		$a=$mem['avail_mem'];
-		$x=130;
-		$y=1;
-		$j=1;
+    case 3:
+        $s=$mem['num_seg']*$mem['seg_size'];
+        $a=$mem['avail_mem'];
+        $x=130;
+        $y=1;
+        $j=1;
 
-		// This block of code creates the bar chart.  It is a lot more complex than you
-		// would expect because we try to visualize any memory fragmentation as well.
-		for($i=0; $i<$mem['num_seg']; $i++) {
-			$ptr = 0;
-			$free = $mem['block_lists'][$i];
-			uasort($free, 'block_sort');
-			foreach($free as $block) {
-				if($block['offset']!=$ptr) {       // Used block
-					$h=(GRAPH_SIZE-5)*($block['offset']-$ptr)/$s;
-					if ($h>0) {
+        // This block of code creates the bar chart.  It is a lot more complex than you
+        // would expect because we try to visualize any memory fragmentation as well.
+        for($i=0; $i<$mem['num_seg']; $i++) {
+            $ptr = 0;
+            $free = $mem['block_lists'][$i];
+            uasort($free, 'block_sort');
+            foreach($free as $block) {
+                if($block['offset']!=$ptr) {       // Used block
+                    $h=(GRAPH_SIZE-5)*($block['offset']-$ptr)/$s;
+                    if ($h>0) {
                                                 $j++;
-						if($j<75) fill_box($image,$x,$y,50,$h,$col_black,$col_red,bsize($block['offset']-$ptr),$j);
+                        if($j<75) fill_box($image,$x,$y,50,$h,$col_black,$col_red,bsize($block['offset']-$ptr),$j);
                                                 else fill_box($image,$x,$y,50,$h,$col_black,$col_red);
                                         }
-					$y+=$h;
-				}
-				$h=(GRAPH_SIZE-5)*($block['size'])/$s;
-				if ($h>0) {
+                    $y+=$h;
+                }
+                $h=(GRAPH_SIZE-5)*($block['size'])/$s;
+                if ($h>0) {
                                         $j++;
-					if($j<75) fill_box($image,$x,$y,50,$h,$col_black,$col_green,bsize($block['size']),$j);
-					else fill_box($image,$x,$y,50,$h,$col_black,$col_green);
+                    if($j<75) fill_box($image,$x,$y,50,$h,$col_black,$col_green,bsize($block['size']),$j);
+                    else fill_box($image,$x,$y,50,$h,$col_black,$col_green);
                                 }
-				$y+=$h;
-				$ptr = $block['offset']+$block['size'];
-			}
-			if ($ptr < $mem['seg_size']) { // memory at the end
-				$h = (GRAPH_SIZE-5) * ($mem['seg_size'] - $ptr) / $s;
-				if ($h > 0) {
-					fill_box($image,$x,$y,50,$h,$col_black,$col_red,bsize($mem['seg_size']-$ptr),$j++);
-				}
-			}
-		}
-		break;
+                $y+=$h;
+                $ptr = $block['offset']+$block['size'];
+            }
+            if ($ptr < $mem['seg_size']) { // memory at the end
+                $h = (GRAPH_SIZE-5) * ($mem['seg_size'] - $ptr) / $s;
+                if ($h > 0) {
+                    fill_box($image,$x,$y,50,$h,$col_black,$col_red,bsize($mem['seg_size']-$ptr),$j++);
+                }
+            }
+        }
+        break;
 
-		case 4:
-			$s=$cache['num_hits']+$cache['num_misses'];
-			$a=$cache['num_hits'];
+        case 4:
+            $s=$cache['num_hits']+$cache['num_misses'];
+            $a=$cache['num_hits'];
 
-			fill_box($image, 30,$size,50,$s ? -$a*($size-21)/$s : 0,$col_black,$col_green,sprintf("%.1f%%", $s ? $cache['num_hits']*100/$s : 0));
-			fill_box($image,130,$size,50,$s ? -max(4,($s-$a)*($size-21)/$s) : 0,$col_black,$col_red,sprintf("%.1f%%", $s ? $cache['num_misses']*100/$s : 0));
-		break;
-	}
+            fill_box($image, 30,$size,50,$s ? -$a*($size-21)/$s : 0,$col_black,$col_green,sprintf("%.1f%%", $s ? $cache['num_hits']*100/$s : 0));
+            fill_box($image,130,$size,50,$s ? -max(4,($s-$a)*($size-21)/$s) : 0,$col_black,$col_red,sprintf("%.1f%%", $s ? $cache['num_misses']*100/$s : 0));
+        break;
+    }
 
-	header("Content-type: image/png");
-	imagepng($image);
-	exit;
+    header("Content-type: image/png");
+    imagepng($image);
+    exit;
 }
 
 // pretty printer for byte values
 //
 function bsize($s) {
-	foreach (array('','K','M','G') as $i => $k) {
-		if ($s < 1024) break;
-		$s/=1024;
-	}
-	return sprintf("%5.1f %sBytes",$s,$k);
+    foreach (array('','K','M','G') as $i => $k) {
+        if ($s < 1024) break;
+        $s/=1024;
+    }
+    return sprintf("%5.1f %sBytes",$s,$k);
 }
 
 // sortable table header in "scripts for this host" view
 function sortheader($key,$name,$extra='') {
-	global $MYREQUEST, $MY_SELF_WO_SORT;
+    global $MYREQUEST, $MY_SELF_WO_SORT;
 
-	if ($MYREQUEST['SORT1']==$key) {
-		$MYREQUEST['SORT2'] = $MYREQUEST['SORT2']=='A' ? 'D' : 'A';
-	}
-	return "<a class=sortable href=\"$MY_SELF_WO_SORT$extra&SORT1=$key&SORT2=".$MYREQUEST['SORT2']."\">$name</a>";
+    if ($MYREQUEST['SORT1']==$key) {
+        $MYREQUEST['SORT2'] = $MYREQUEST['SORT2']=='A' ? 'D' : 'A';
+    }
+    return "<a class=sortable href=\"$MY_SELF_WO_SORT$extra&SORT1=$key&SORT2=".$MYREQUEST['SORT2']."\">$name</a>";
 
 }
 
 // create menu entry
 function menu_entry($ob,$title) {
-	global $MYREQUEST,$MY_SELF;
-	if ($MYREQUEST['OB']!=$ob) {
-		return "<li><a href=\"$MY_SELF&OB=$ob\">$title</a></li>";
-	} else if (empty($MYREQUEST['SH'])) {
-		return "<li><span class=active>$title</span></li>";
-	} else {
-		return "<li><a class=\"child_active\" href=\"$MY_SELF&OB=$ob\">$title</a></li>";
-	}
+    global $MYREQUEST,$MY_SELF;
+    if ($MYREQUEST['OB']!=$ob) {
+        return "<li><a href=\"$MY_SELF&OB=$ob\">$title</a></li>";
+    } else if (empty($MYREQUEST['SH'])) {
+        return "<li><span class=active>$title</span></li>";
+    } else {
+        return "<li><a class=\"child_active\" href=\"$MY_SELF&OB=$ob\">$title</a></li>";
+    }
 }
 
 function put_login_link($s="Login")
 {
-	global $MY_SELF,$MYREQUEST,$AUTHENTICATED;
-	// needs ADMIN_PASSWORD to be changed!
-	//
-	if (!USE_AUTHENTICATION) {
-		return;
-	} else if (ADMIN_PASSWORD=='password')
-	{
-		print <<<EOB
-			<a href="#" onClick="javascript:alert('You need to set a password at the top of apc.php before this will work!');return false";>$s</a>
+    global $MY_SELF,$MYREQUEST,$AUTHENTICATED;
+    // needs ADMIN_PASSWORD to be changed!
+    //
+    if (!USE_AUTHENTICATION) {
+        return;
+    } else if (ADMIN_PASSWORD=='password')
+    {
+        print <<<EOB
+            <a href="#" onClick="javascript:alert('You need to set a password at the top of apc.php before this will work!');return false";>$s</a>
 EOB;
-	} else if ($AUTHENTICATED) {
-		print <<<EOB
-			'{$_SERVER['PHP_AUTH_USER']}'&nbsp;logged&nbsp;in!
+    } else if ($AUTHENTICATED) {
+        print <<<EOB
+            '{$_SERVER['PHP_AUTH_USER']}'&nbsp;logged&nbsp;in!
 EOB;
-	} else{
-		print <<<EOB
-			<a href="$MY_SELF&LO=1&OB={$MYREQUEST['OB']}">$s</a>
+    } else{
+        print <<<EOB
+            <a href="$MY_SELF&LO=1&OB={$MYREQUEST['OB']}">$s</a>
 EOB;
-	}
+    }
 }
 
 function block_sort($array1, $array2)
 {
-	if ($array1['offset'] > $array2['offset']) {
-		return 1;
-	} else {
-		return -1;
-	}
+    if ($array1['offset'] > $array2['offset']) {
+        return 1;
+    } else {
+        return -1;
+    }
 }
 
 
@@ -524,141 +528,143 @@ body,p,td,th,input,submit { font-size:0.8em;font-family:arial,helvetica,sans-ser
 td { vertical-align:top }
 a { color:black; font-weight:none; text-decoration:none; }
 a:hover { text-decoration:underline; }
+a.entry-info:hover { text-decoration:none; }
 div.content { padding:1em 1em 1em 1em; position:absolute; width:97%; z-index:100; }
 
 
 div.head div.login {
-	position:absolute;
-	right: 1em;
-	top: 1.2em;
-	color:white;
-	width:6em;
-	}
+    position:absolute;
+    right: 1em;
+    top: 1.2em;
+    color:white;
+    width:6em;
+    }
 div.head div.login a {
-	position:absolute;
-	right: 0em;
-	background:rgb(119,123,180);
-	border:solid rgb(102,102,153) 2px;
-	color:white;
-	font-weight:bold;
-	padding:0.1em 0.5em 0.1em 0.5em;
-	text-decoration:none;
-	}
+    position:absolute;
+    right: 0em;
+    background:rgb(119,123,180);
+    border:solid rgb(102,102,153) 2px;
+    color:white;
+    font-weight:bold;
+    padding:0.1em 0.5em 0.1em 0.5em;
+    text-decoration:none;
+    }
 div.head div.login a:hover {
-	background:rgb(193,193,244);
-	}
+    background:rgb(193,193,244);
+    }
 
 h1.apc { background:rgb(153,153,204); margin:0; padding:0.5em 1em 0.5em 1em; }
 * html h1.apc { margin-bottom:-7px; }
 h1.apc a:hover { text-decoration:none; color:rgb(90,90,90); }
 h1.apc div.logo span.logo {
-	background:rgb(119,123,180);
-	color:black;
-	border-right: solid black 1px;
-	border-bottom: solid black 1px;
-	font-style:italic;
-	font-size:1em;
-	padding-left:1.2em;
-	padding-right:1.2em;
-	text-align:right;
-	}
+    background:rgb(119,123,180);
+    color:black;
+    border-right: solid black 1px;
+    border-bottom: solid black 1px;
+    font-style:italic;
+    font-size:1em;
+    padding-left:1.2em;
+    padding-right:1.2em;
+    text-align:right;
+    }
 h1.apc div.logo span.name { color:white; font-size:0.7em; padding:0 0.8em 0 2em; }
 h1.apc div.nameinfo { color:white; display:inline; font-size:0.4em; margin-left: 3em; }
 h1.apc div.copy { color:black; font-size:0.4em; position:absolute; right:1em; }
 hr.apc {
-	background:white;
-	border-bottom:solid rgb(102,102,153) 1px;
-	border-style:none;
-	border-top:solid rgb(102,102,153) 10px;
-	height:12px;
-	margin:0;
-	margin-top:1px;
-	padding:0;
+    background:white;
+    border-bottom:solid rgb(102,102,153) 1px;
+    border-style:none;
+    border-top:solid rgb(102,102,153) 10px;
+    height:12px;
+    margin:0;
+    margin-top:1px;
+    padding:0;
 }
 
 ol,menu { margin:1em 0 0 0; padding:0.2em; margin-left:1em;}
 ol.menu li { display:inline; margin-right:0.7em; list-style:none; font-size:85%}
 ol.menu a {
-	background:rgb(153,153,204);
-	border:solid rgb(102,102,153) 2px;
-	color:white;
-	font-weight:bold;
-	margin-right:0em;
-	padding:0.1em 0.5em 0.1em 0.5em;
-	text-decoration:none;
-	margin-left: 5px;
-	}
+    background:rgb(153,153,204);
+    border:solid rgb(102,102,153) 2px;
+    color:white;
+    font-weight:bold;
+    margin-right:0em;
+    padding:0.1em 0.5em 0.1em 0.5em;
+    text-decoration:none;
+    margin-left: 5px;
+    }
 ol.menu a.child_active {
-	background:rgb(153,153,204);
-	border:solid rgb(102,102,153) 2px;
-	color:white;
-	font-weight:bold;
-	margin-right:0em;
-	padding:0.1em 0.5em 0.1em 0.5em;
-	text-decoration:none;
-	border-left: solid black 5px;
-	margin-left: 0px;
-	}
+    background:rgb(153,153,204);
+    border:solid rgb(102,102,153) 2px;
+    color:white;
+    font-weight:bold;
+    margin-right:0em;
+    padding:0.1em 0.5em 0.1em 0.5em;
+    text-decoration:none;
+    border-left: solid black 5px;
+    margin-left: 0px;
+    }
 ol.menu span.active {
-	background:rgb(153,153,204);
-	border:solid rgb(102,102,153) 2px;
-	color:black;
-	font-weight:bold;
-	margin-right:0em;
-	padding:0.1em 0.5em 0.1em 0.5em;
-	text-decoration:none;
-	border-left: solid black 5px;
-	}
+    background:rgb(153,153,204);
+    border:solid rgb(102,102,153) 2px;
+    color:black;
+    font-weight:bold;
+    margin-right:0em;
+    padding:0.1em 0.5em 0.1em 0.5em;
+    text-decoration:none;
+    border-left: solid black 5px;
+    }
 ol.menu span.inactive {
-	background:rgb(193,193,244);
-	border:solid rgb(182,182,233) 2px;
-	color:white;
-	font-weight:bold;
-	margin-right:0em;
-	padding:0.1em 0.5em 0.1em 0.5em;
-	text-decoration:none;
-	margin-left: 5px;
-	}
+    background:rgb(193,193,244);
+    border:solid rgb(182,182,233) 2px;
+    color:white;
+    font-weight:bold;
+    margin-right:0em;
+    padding:0.1em 0.5em 0.1em 0.5em;
+    text-decoration:none;
+    margin-left: 5px;
+    }
 ol.menu a:hover {
-	background:rgb(193,193,244);
-	text-decoration:none;
-	}
+    background:rgb(193,193,244);
+    text-decoration:none;
+    }
 
 
 div.info {
-	background:rgb(204,204,204);
-	border:solid rgb(204,204,204) 1px;
-	margin-bottom:1em;
-	}
+    background:rgb(204,204,204);
+    border:solid rgb(204,204,204) 1px;
+    margin-bottom:1em;
+    }
 div.info h2 {
-	background:rgb(204,204,204);
-	color:black;
-	font-size:1em;
-	margin:0;
-	padding:0.1em 1em 0.1em 1em;
-	}
+    background:rgb(204,204,204);
+    color:black;
+    font-size:1em;
+    margin:0;
+    padding:0.1em 1em 0.1em 1em;
+    }
 div.info table {
-	border:solid rgb(204,204,204) 1px;
-	border-spacing:0;
-	width:100%;
-	}
+    border:solid rgb(204,204,204) 1px;
+    border-spacing:0;
+    width:100%;
+    }
 div.info table th {
-	background:rgb(204,204,204);
-	color:white;
-	margin:0;
-	padding:0.1em 1em 0.1em 1em;
-	}
+    background:rgb(204,204,204);
+    color:white;
+    margin:0;
+    padding:0.1em 1em 0.1em 1em;
+    }
 div.info table th a.sortable { color:black; }
+div.info table tr.sticky { position: sticky; top: 0; }
 div.info table tr.tr-0 { background:rgb(238,238,238); }
 div.info table tr.tr-1 { background:rgb(221,221,221); }
 div.info table td { padding:0.3em 1em 0.3em 1em; }
 div.info table td.td-0 { border-right:solid rgb(102,102,153) 1px; white-space:nowrap; }
 div.info table td.td-n { border-right:solid rgb(102,102,153) 1px; }
 div.info table td h3 {
-	color:black;
-	font-size:1.1em;
-	margin-left:-0.3em;
-	}
+    color:black;
+    font-size:1.1em;
+    margin-left:-0.3em;
+    }
 
 div.graph { margin-bottom:1em }
 div.graph h2 { background:rgb(204,204,204);; color:black; font-size:1em; margin:0; padding:0.1em 1em 0.1em 1em; }
@@ -679,72 +685,72 @@ div.sorting { margin:1.5em 0em 1.5em 2em }
 .failed { color:rgb(200,0,0); font-weight:bold}
 
 span.box {
-	border: black solid 1px;
-	border-right:solid black 2px;
-	border-bottom:solid black 2px;
-	padding:0 0.5em 0 0.5em;
-	margin-right:1em;
+    border: black solid 1px;
+    border-right:solid black 2px;
+    border-bottom:solid black 2px;
+    padding:0 0.5em 0 0.5em;
+    margin-right:1em;
 }
 span.green { background:#60F060; padding:0 0.5em 0 0.5em}
 span.red { background:#D06030; padding:0 0.5em 0 0.5em }
 
 div.authneeded {
-	background:rgb(238,238,238);
-	border:solid rgb(204,204,204) 1px;
-	color:rgb(200,0,0);
-	font-size:1.2em;
-	font-weight:bold;
-	padding:2em;
-	text-align:center;
-	}
+    background:rgb(238,238,238);
+    border:solid rgb(204,204,204) 1px;
+    color:rgb(200,0,0);
+    font-size:1.2em;
+    font-weight:bold;
+    padding:2em;
+    text-align:center;
+    }
 
 input {
-	background:rgb(153,153,204);
-	border:solid rgb(102,102,153) 2px;
-	color:white;
-	font-weight:bold;
-	margin-right:1em;
-	padding:0.1em 0.5em 0.1em 0.5em;
-	}
+    background:rgb(153,153,204);
+    border:solid rgb(102,102,153) 2px;
+    color:white;
+    font-weight:bold;
+    margin-right:1em;
+    padding:0.1em 0.5em 0.1em 0.5em;
+    }
 //-->
 </style>
 </head>
 <body>
 <div class="head">
-	<h1 class="apc">
-		<div class="logo"><span class="logo"><a href="http://pecl.php.net/package/APCu">APCu</a></span></div>
-		<div class="nameinfo">User Cache</div>
-	</h1>
-	<div class="login">
-	<?php put_login_link(); ?>
-	</div>
-	<hr class="apc">
+    <h1 class="apc">
+        <div class="logo"><span class="logo"><a href="https://pecl.php.net/package/APCu">APCu</a></span></div>
+        <div class="nameinfo">User Cache</div>
+    </h1>
+    <div class="login">
+    <?php put_login_link(); ?>
+    </div>
+    <hr class="apc">
 </div>
 
 <?php
 // Display main Menu
 echo <<<EOB
-	<ol class=menu>
-	<li><a href="$MY_SELF&OB={$MYREQUEST['OB']}&SH={$MYREQUEST['SH']}">Refresh Data</a></li>
+    <ol class=menu>
+    <li><a href="$MY_SELF&OB={$MYREQUEST['OB']}&SH={$MYREQUEST['SH']}">Refresh Data</a></li>
 EOB;
 echo
-	menu_entry(OB_HOST_STATS,'View Host Stats'),
-	menu_entry(OB_USER_CACHE,'User Cache Entries'),
-	menu_entry(OB_VERSION_CHECK,'Version Check');
+    menu_entry(OB_HOST_STATS,'View Host Stats'),
+    menu_entry(OB_USER_CACHE,'User Cache Entries'),
+    menu_entry(OB_VERSION_CHECK,'Version Check');
 
 if ($AUTHENTICATED) {
-	echo <<<EOB
-		<li><a class="aright" href="$MY_SELF&CC=1&OB={$MYREQUEST['OB']}" onClick="javascript:return confirm('Are you sure?');">Clear Cache</a></li>
+    echo <<<EOB
+        <li><a class="aright" href="$MY_SELF&CC=1&OB={$MYREQUEST['OB']}" onClick="javascript:return confirm('Are you sure?');">Clear Cache</a></li>
 EOB;
 }
 echo <<<EOB
-	</ol>
+    </ol>
 EOB;
 
 
 // CONTENT
 echo <<<EOB
-	<div class=content>
+    <div class=content>
 EOB;
 
 // MAIN SWITCH STATEMENT
@@ -754,397 +760,411 @@ switch ($MYREQUEST['OB']) {
 // Host Stats
 // -----------------------------------------------
 case OB_HOST_STATS:
-	$mem_size = $mem['num_seg']*$mem['seg_size'];
-	$mem_avail= $mem['avail_mem'];
-	$mem_used = $mem_size-$mem_avail;
-	$seg_size = bsize($mem['seg_size']);
-	$req_rate_user = sprintf("%.2f", $cache['num_hits'] ? (($cache['num_hits']+$cache['num_misses'])/($time-$cache['start_time'])) : 0);
-	$hit_rate_user = sprintf("%.2f", $cache['num_hits'] ? (($cache['num_hits'])/($time-$cache['start_time'])) : 0);
-	$miss_rate_user = sprintf("%.2f", $cache['num_misses'] ? (($cache['num_misses'])/($time-$cache['start_time'])) : 0);
-	$insert_rate_user = sprintf("%.2f", $cache['num_inserts'] ? (($cache['num_inserts'])/($time-$cache['start_time'])) : 0);
-	$apcversion = phpversion('apcu');
-	$phpversion = phpversion();
-	$number_vars = $cache['num_entries'];
+    $mem_size = $mem['num_seg']*$mem['seg_size'];
+    $mem_avail= $mem['avail_mem'];
+    $mem_used = $mem_size-$mem_avail;
+    $seg_size = bsize($mem['seg_size']);
+    $elapsed = max($time-$cache['start_time'], 1);
+    $req_rate_user = sprintf("%.2f", $cache['num_hits'] ? (($cache['num_hits']+$cache['num_misses'])/$elapsed) : 0);
+    $hit_rate_user = sprintf("%.2f", $cache['num_hits'] ? (($cache['num_hits'])/$elapsed) : 0);
+    $miss_rate_user = sprintf("%.2f", $cache['num_misses'] ? (($cache['num_misses'])/$elapsed) : 0);
+    $insert_rate_user = sprintf("%.2f", $cache['num_inserts'] ? (($cache['num_inserts'])/$elapsed) : 0);
+    $apcversion = phpversion('apcu');
+    $phpversion = phpversion();
+    $number_vars = $cache['num_entries'];
     $size_vars = bsize($cache['mem_size']);
-	$i=0;
-	echo <<< EOB
-		<div class="info div1"><h2>General Cache Information</h2>
-		<table cellspacing=0><tbody>
-		<tr class=tr-0><td class=td-0>APCu Version</td><td>$apcversion</td></tr>
-		<tr class=tr-1><td class=td-0>PHP Version</td><td>$phpversion</td></tr>
+    $num_hits_and_misses = $cache['num_hits'] + $cache['num_misses'];
+    $num_hits_and_misses = 0 >= $num_hits_and_misses ? 1 : $num_hits_and_misses;
+    $i=0;
+    echo <<< EOB
+        <div class="info div1"><h2>General Cache Information</h2>
+        <table cellspacing=0><tbody>
+        <tr class=tr-0><td class=td-0>APCu Version</td><td>$apcversion</td></tr>
+        <tr class=tr-1><td class=td-0>PHP Version</td><td>$phpversion</td></tr>
 EOB;
 
-	if(!empty($_SERVER['SERVER_NAME']))
-		echo "<tr class=tr-0><td class=td-0>APCu Host</td><td>{$_SERVER['SERVER_NAME']} $host</td></tr>\n";
-	if(!empty($_SERVER['SERVER_SOFTWARE']))
-		echo "<tr class=tr-1><td class=td-0>Server Software</td><td>{$_SERVER['SERVER_SOFTWARE']}</td></tr>\n";
+    if(!empty($_SERVER['SERVER_NAME']))
+        echo "<tr class=tr-0><td class=td-0>APCu Host</td><td>{$_SERVER['SERVER_NAME']} $host</td></tr>\n";
+    if(!empty($_SERVER['SERVER_SOFTWARE']))
+        echo "<tr class=tr-1><td class=td-0>Server Software</td><td>{$_SERVER['SERVER_SOFTWARE']}</td></tr>\n";
 
-	echo <<<EOB
-		<tr class=tr-0><td class=td-0>Shared Memory</td><td>{$mem['num_seg']} Segment(s) with $seg_size
+    echo <<<EOB
+        <tr class=tr-0><td class=td-0>Shared Memory</td><td>{$mem['num_seg']} Segment(s) with $seg_size
     <br/> ({$cache['memory_type']} memory)
     </td></tr>
 EOB;
-	echo   '<tr class=tr-1><td class=td-0>Start Time</td><td>',date(DATE_FORMAT,$cache['start_time']),'</td></tr>';
-	echo   '<tr class=tr-0><td class=td-0>Uptime</td><td>',duration($cache['start_time']),'</td></tr>';
-	echo <<<EOB
-		</tbody></table>
-		</div>
+    echo   '<tr class=tr-1><td class=td-0>Start Time</td><td>',date(DATE_FORMAT,$cache['start_time']),'</td></tr>';
+    echo   '<tr class=tr-0><td class=td-0>Uptime</td><td>',duration($cache['start_time']),'</td></tr>';
+    echo <<<EOB
+        </tbody></table>
+        </div>
 
-		<div class="info div1"><h2>Cache Information</h2>
-		<table cellspacing=0>
-		<tbody>
-    		<tr class=tr-0><td class=td-0>Cached Variables</td><td>$number_vars ($size_vars)</td></tr>
-			<tr class=tr-1><td class=td-0>Hits</td><td>{$cache['num_hits']}</td></tr>
-			<tr class=tr-0><td class=td-0>Misses</td><td>{$cache['num_misses']}</td></tr>
-			<tr class=tr-1><td class=td-0>Request Rate (hits, misses)</td><td>$req_rate_user cache requests/second</td></tr>
-			<tr class=tr-0><td class=td-0>Hit Rate</td><td>$hit_rate_user cache requests/second</td></tr>
-			<tr class=tr-1><td class=td-0>Miss Rate</td><td>$miss_rate_user cache requests/second</td></tr>
-			<tr class=tr-0><td class=td-0>Insert Rate</td><td>$insert_rate_user cache requests/second</td></tr>
-			<tr class=tr-1><td class=td-0>Cache full count</td><td>{$cache['expunges']}</td></tr>
-		</tbody>
-		</table>
-		</div>
+        <div class="info div1"><h2>Cache Information</h2>
+        <table cellspacing=0>
+        <tbody>
+            <tr class=tr-0><td class=td-0>Cached Variables</td><td>$number_vars ($size_vars)</td></tr>
+            <tr class=tr-1><td class=td-0>Hits</td><td>{$cache['num_hits']}</td></tr>
+            <tr class=tr-0><td class=td-0>Misses</td><td>{$cache['num_misses']}</td></tr>
+            <tr class=tr-1><td class=td-0>Request Rate (hits, misses)</td><td>$req_rate_user cache requests/second</td></tr>
+            <tr class=tr-0><td class=td-0>Hit Rate</td><td>$hit_rate_user cache requests/second</td></tr>
+            <tr class=tr-1><td class=td-0>Miss Rate</td><td>$miss_rate_user cache requests/second</td></tr>
+            <tr class=tr-0><td class=td-0>Insert Rate</td><td>$insert_rate_user cache requests/second</td></tr>
+            <tr class=tr-1><td class=td-0>Cache full count</td><td>{$cache['expunges']}</td></tr>
+        </tbody>
+        </table>
+        </div>
 
-		<div class="info div2"><h2>Runtime Settings</h2><table cellspacing=0><tbody>
+        <div class="info div2"><h2>Runtime Settings</h2><table cellspacing=0><tbody>
 EOB;
 
-	$j = 0;
-	foreach (ini_get_all('apcu') as $k => $v) {
-		echo "<tr class=tr-$j><td class=td-0>",$k,"</td><td>",str_replace(',',',<br />',$v['local_value']),"</td></tr>\n";
-		$j = 1 - $j;
-	}
+    $j = 0;
+    foreach (ini_get_all('apcu') as $k => $v) {
+        echo "<tr class=tr-$j><td class=td-0>",$k,"</td><td>",str_replace(',',',<br />',$v['local_value'] ?? ''),"</td></tr>\n";
+        $j = 1 - $j;
+    }
 
-	if($mem['num_seg']>1 || $mem['num_seg']==1 && count($mem['block_lists'][0])>1)
-		$mem_note = "Memory Usage<br /><font size=-2>(multiple slices indicate fragments)</font>";
-	else
-		$mem_note = "Memory Usage";
+    if($mem['num_seg']>1 || $mem['num_seg']==1 && count($mem['block_lists'][0])>1)
+        $mem_note = "Memory Usage<br /><font size=-2>(multiple slices indicate fragments)</font>";
+    else
+        $mem_note = "Memory Usage";
 
-	echo <<< EOB
-		</tbody></table>
-		</div>
+    echo <<< EOB
+        </tbody></table>
+        </div>
 
-		<div class="graph div3"><h2>Host Status Diagrams</h2>
-		<table cellspacing=0><tbody>
+        <div class="graph div3"><h2>Host Status Diagrams</h2>
+        <table cellspacing=0><tbody>
 EOB;
-	$size='width='.(GRAPH_SIZE+50).' height='.(GRAPH_SIZE+10);
+    $size='width='.(GRAPH_SIZE+50).' height='.(GRAPH_SIZE+10);
 echo <<<EOB
-		<tr>
-		<td class=td-0>$mem_note</td>
-		<td class=td-1>Hits &amp; Misses</td>
-		</tr>
+        <tr>
+        <td class=td-0>$mem_note</td>
+        <td class=td-1>Hits &amp; Misses</td>
+        </tr>
 EOB;
 
-	echo
-		graphics_avail() ?
-			  '<tr>'.
-			  "<td class=td-0><img alt=\"\" $size src=\"$PHP_SELF?IMG=1&$time\"></td>".
-			  "<td class=td-1><img alt=\"\" $size src=\"$PHP_SELF?IMG=2&$time\"></td></tr>\n"
-			: "",
-		'<tr>',
-		'<td class=td-0><span class="green box">&nbsp;</span>Free: ',bsize($mem_avail).sprintf(" (%.1f%%)",$mem_avail*100/$mem_size),"</td>\n",
-		'<td class=td-1><span class="green box">&nbsp;</span>Hits: ',$cache['num_hits'].@sprintf(" (%.1f%%)",$cache['num_hits']*100/($cache['num_hits']+$cache['num_misses'])),"</td>\n",
-		'</tr>',
-		'<tr>',
-		'<td class=td-0><span class="red box">&nbsp;</span>Used: ',bsize($mem_used).sprintf(" (%.1f%%)",$mem_used *100/$mem_size),"</td>\n",
-		'<td class=td-1><span class="red box">&nbsp;</span>Misses: ',$cache['num_misses'].@sprintf(" (%.1f%%)",$cache['num_misses']*100/($cache['num_hits']+$cache['num_misses'])),"</td>\n";
-	echo <<< EOB
-		</tr>
-		</tbody></table>
+    echo
+        graphics_avail() ?
+              '<tr>'.
+              "<td class=td-0><img alt=\"\" $size src=\"$PHP_SELF?IMG=1&$time\"></td>".
+              "<td class=td-1><img alt=\"\" $size src=\"$PHP_SELF?IMG=2&$time\"></td></tr>\n"
+            : "",
+        '<tr>',
+        '<td class=td-0><span class="green box">&nbsp;</span>Free: ',bsize($mem_avail).sprintf(" (%.1f%%)",$mem_avail*100/$mem_size),"</td>\n",
+        '<td class=td-1><span class="green box">&nbsp;</span>Hits: ',$cache['num_hits'].@sprintf(" (%.1f%%)",$cache['num_hits']*100/$num_hits_and_misses),"</td>\n",
+        '</tr>',
+        '<tr>',
+        '<td class=td-0><span class="red box">&nbsp;</span>Used: ',bsize($mem_used).sprintf(" (%.1f%%)",$mem_used *100/$mem_size),"</td>\n",
+        '<td class=td-1><span class="red box">&nbsp;</span>Misses: ',$cache['num_misses'].@sprintf(" (%.1f%%)",$cache['num_misses']*100/$num_hits_and_misses),"</td>\n";
+    echo <<< EOB
+        </tr>
+        </tbody></table>
 
-		<br/>
-		<h2>Detailed Memory Usage and Fragmentation</h2>
-		<table cellspacing=0><tbody>
-		<tr>
-		<td class=td-0 colspan=2><br/>
+        <br/>
+        <h2>Detailed Memory Usage and Fragmentation</h2>
+        <table cellspacing=0><tbody>
+        <tr>
+        <td class=td-0 colspan=2><br/>
 EOB;
 
-	// Fragementation: (freeseg - 1) / total_seg
-	$nseg = $freeseg = $fragsize = $freetotal = 0;
-	for($i=0; $i<$mem['num_seg']; $i++) {
-		$ptr = 0;
-		foreach($mem['block_lists'][$i] as $block) {
-			if ($block['offset'] != $ptr) {
-				++$nseg;
-			}
-			$ptr = $block['offset'] + $block['size'];
-                        /* Only consider blocks <5M for the fragmentation % */
-                        if($block['size']<(5*1024*1024)) $fragsize+=$block['size'];
-                        $freetotal+=$block['size'];
-		}
-		$freeseg += count($mem['block_lists'][$i]);
-	}
+    // Fragementation: (freeseg - 1) / total_seg
+    $nseg = $freeseg = $fragsize = $freetotal = 0;
+    for($i=0; $i<$mem['num_seg']; $i++) {
+        $ptr = 0;
+        foreach($mem['block_lists'][$i] as $block) {
+            if ($block['offset'] != $ptr) {
+                ++$nseg;
+            }
+            $ptr = $block['offset'] + $block['size'];
+            /* Only consider blocks <5M for the fragmentation % */
+            if($block['size']<(5*1024*1024)) $fragsize+=$block['size'];
+            $freetotal+=$block['size'];
+        }
+        $freeseg += count($mem['block_lists'][$i]);
+    }
 
-	if ($freeseg > 1) {
-		$frag = sprintf("%.2f%% (%s out of %s in %d fragments)", ($fragsize/$freetotal)*100,bsize($fragsize),bsize($freetotal),$freeseg);
-	} else {
-		$frag = "0%";
-	}
+    if ($freeseg > 1) {
+        $frag = sprintf("%.2f%% (%s out of %s in %d fragments)", ($fragsize/$freetotal)*100,bsize($fragsize),bsize($freetotal),$freeseg);
+    } else {
+        $frag = "0%";
+    }
 
-	if (graphics_avail()) {
-		$size='width='.(2*GRAPH_SIZE+150).' height='.(GRAPH_SIZE+10);
-		echo <<<EOB
-			<img alt="" $size src="$PHP_SELF?IMG=3&$time">
+    if (graphics_avail()) {
+        $size='width='.(2*GRAPH_SIZE+150).' height='.(GRAPH_SIZE+10);
+        echo <<<EOB
+            <img alt="" $size src="$PHP_SELF?IMG=3&$time">
 EOB;
-	}
-	echo <<<EOB
-		</br>Fragmentation: $frag
-		</td>
-		</tr>
+    }
+    echo <<<EOB
+        </br>Fragmentation: $frag
+        </td>
+        </tr>
 EOB;
         if(isset($mem['adist'])) {
-          foreach($mem['adist'] as $i=>$v) {
-            $cur = pow(2,$i); $nxt = pow(2,$i+1)-1;
-            if($i==0) $range = "1";
-            else $range = "$cur - $nxt";
-            echo "<tr><th align=right>$range</th><td align=right>$v</td></tr>\n";
-          }
+            foreach($mem['adist'] as $i=>$v) {
+                $cur = pow(2,$i); $nxt = pow(2,$i+1)-1;
+                if($i==0) $range = "1";
+                else $range = "$cur - $nxt";
+                echo "<tr><th align=right>$range</th><td align=right>$v</td></tr>\n";
+            }
         }
         echo <<<EOB
-		</tbody></table>
-		</div>
+        </tbody></table>
+        </div>
 EOB;
 
-	break;
+    break;
 
 
 // -----------------------------------------------
 // User Cache Entries
 // -----------------------------------------------
 case OB_USER_CACHE:
-	if (!$AUTHENTICATED) {
-    echo '<div class="error">You need to login to see the user values here!<br/>&nbsp;<br/>';
-		put_login_link("Login now!");
-		echo '</div>';
-		break;
-	}
-	$fieldname='info';
-	$fieldheading='User Entry Label';
-	$fieldkey='info';
+    if (!$AUTHENTICATED) {
+        echo '<div class="error">You need to login to see the user values here!<br/>&nbsp;<br/>';
+        put_login_link("Login now!");
+        echo '</div>';
+        break;
+    }
+    $fieldname='info';
+    $fieldheading='User Entry Label';
+    $fieldkey='info';
 
-	$cols=6;
-	echo <<<EOB
-		<div class=sorting><form>Scope:
-		<input type=hidden name=OB value={$MYREQUEST['OB']}>
-		<select name=SCOPE>
+    $cols=6;
+    echo <<<EOB
+        <div class=sorting><form>Scope:
+        <input type=hidden name=OB value={$MYREQUEST['OB']}>
+        <select name=SCOPE>
 EOB;
-	echo
-		"<option value=A",$MYREQUEST['SCOPE']=='A' ? " selected":"",">Active</option>",
-		"<option value=D",$MYREQUEST['SCOPE']=='D' ? " selected":"",">Deleted</option>",
-		"</select>",
-		", Sorting:<select name=SORT1>",
-		"<option value=H",$MYREQUEST['SORT1']=='H' ? " selected":"",">Hits</option>",
-		"<option value=Z",$MYREQUEST['SORT1']=='Z' ? " selected":"",">Size</option>",
-		"<option value=S",$MYREQUEST['SORT1']=='S' ? " selected":"",">$fieldheading</option>",
-		"<option value=A",$MYREQUEST['SORT1']=='A' ? " selected":"",">Last accessed</option>",
-		"<option value=M",$MYREQUEST['SORT1']=='M' ? " selected":"",">Last modified</option>",
-		"<option value=C",$MYREQUEST['SORT1']=='C' ? " selected":"",">Created at</option>",
-		"<option value=D",$MYREQUEST['SORT1']=='D' ? " selected":"",">Deleted at</option>";
-	if($fieldname=='info') echo
-		"<option value=D",$MYREQUEST['SORT1']=='T' ? " selected":"",">Timeout</option>";
-	echo
-		'</select>',
-		'<select name=SORT2>',
-		'<option value=D',$MYREQUEST['SORT2']=='D' ? ' selected':'','>DESC</option>',
-		'<option value=A',$MYREQUEST['SORT2']=='A' ? ' selected':'','>ASC</option>',
-		'</select>',
-		'<select name=COUNT onChange="form.submit()">',
-		'<option value=10 ',$MYREQUEST['COUNT']=='10' ? ' selected':'','>Top 10</option>',
-		'<option value=20 ',$MYREQUEST['COUNT']=='20' ? ' selected':'','>Top 20</option>',
-		'<option value=50 ',$MYREQUEST['COUNT']=='50' ? ' selected':'','>Top 50</option>',
-		'<option value=100',$MYREQUEST['COUNT']=='100'? ' selected':'','>Top 100</option>',
-		'<option value=150',$MYREQUEST['COUNT']=='150'? ' selected':'','>Top 150</option>',
-		'<option value=200',$MYREQUEST['COUNT']=='200'? ' selected':'','>Top 200</option>',
-		'<option value=500',$MYREQUEST['COUNT']=='500'? ' selected':'','>Top 500</option>',
-		'<option value=0  ',$MYREQUEST['COUNT']=='0'  ? ' selected':'','>All</option>',
-		'</select>',
-    '&nbsp; Search: <input name=SEARCH value="',$MYREQUEST['SEARCH'],'" type=text size=25/>',
-		'&nbsp;<input type=submit value="GO!">',
-		'</form></div>';
-
-  if (isset($MYREQUEST['SEARCH'])) {
-   // Don't use preg_quote because we want the user to be able to specify a
-   // regular expression subpattern.
-   $MYREQUEST['SEARCH'] = '/'.str_replace('/', '\\/', $MYREQUEST['SEARCH']).'/i';
-   if (preg_match($MYREQUEST['SEARCH'], 'test') === false) {
-     echo '<div class="error">Error: enter a valid regular expression as a search query.</div>';
-     break;
-   }
-  }
+    echo
+        "<option value=A",$MYREQUEST['SCOPE']=='A' ? " selected":"",">Active</option>",
+        "<option value=D",$MYREQUEST['SCOPE']=='D' ? " selected":"",">Deleted</option>",
+        "</select>",
+        ", Sorting:<select name=SORT1>",
+        "<option value=H",$MYREQUEST['SORT1']=='H' ? " selected":"",">Hits</option>",
+        "<option value=Z",$MYREQUEST['SORT1']=='Z' ? " selected":"",">Size</option>",
+        "<option value=S",$MYREQUEST['SORT1']=='S' ? " selected":"",">$fieldheading</option>",
+        "<option value=A",$MYREQUEST['SORT1']=='A' ? " selected":"",">Last accessed</option>",
+        "<option value=M",$MYREQUEST['SORT1']=='M' ? " selected":"",">Last modified</option>",
+        "<option value=C",$MYREQUEST['SORT1']=='C' ? " selected":"",">Created at</option>",
+        "<option value=D",$MYREQUEST['SORT1']=='D' ? " selected":"",">Deleted at</option>";
+    if($fieldname=='info') echo
+        "<option value=T",$MYREQUEST['SORT1']=='T' ? " selected":"",">Timeout</option>";
+    echo
+        '</select>',
+        '<select name=SORT2>',
+        '<option value=D',$MYREQUEST['SORT2']=='D' ? ' selected':'','>DESC</option>',
+        '<option value=A',$MYREQUEST['SORT2']=='A' ? ' selected':'','>ASC</option>',
+        '</select>',
+        '<select name=COUNT onChange="form.submit()">',
+        '<option value=10 ',$MYREQUEST['COUNT']=='10' ? ' selected':'','>Top 10</option>',
+        '<option value=20 ',$MYREQUEST['COUNT']=='20' ? ' selected':'','>Top 20</option>',
+        '<option value=50 ',$MYREQUEST['COUNT']=='50' ? ' selected':'','>Top 50</option>',
+        '<option value=100',$MYREQUEST['COUNT']=='100'? ' selected':'','>Top 100</option>',
+        '<option value=150',$MYREQUEST['COUNT']=='150'? ' selected':'','>Top 150</option>',
+        '<option value=200',$MYREQUEST['COUNT']=='200'? ' selected':'','>Top 200</option>',
+        '<option value=500',$MYREQUEST['COUNT']=='500'? ' selected':'','>Top 500</option>',
+        '<option value=0  ',$MYREQUEST['COUNT']=='0'  ? ' selected':'','>All</option>',
+        '</select>',
+    '&nbsp; Search: <input name=SEARCH value="',isset($MYREQUEST['SEARCH']) ? htmlspecialchars($MYREQUEST['SEARCH']) : '','" type=text size=25/>',
+        '&nbsp;<input type=submit value="GO!">',
+        '</form></div>';
 
-  echo
-		'<div class="info"><table cellspacing=0><tbody>',
-		'<tr>',
-		'<th>',sortheader('S',$fieldheading,  "&OB=".$MYREQUEST['OB']),'</th>',
-		'<th>',sortheader('H','Hits',         "&OB=".$MYREQUEST['OB']),'</th>',
-		'<th>',sortheader('Z','Size',         "&OB=".$MYREQUEST['OB']),'</th>',
-		'<th>',sortheader('A','Last accessed',"&OB=".$MYREQUEST['OB']),'</th>',
-		'<th>',sortheader('M','Last modified',"&OB=".$MYREQUEST['OB']),'</th>',
-		'<th>',sortheader('C','Created at',   "&OB=".$MYREQUEST['OB']),'</th>';
+    if (isset($MYREQUEST['SEARCH'])) {
+        // Don't use preg_quote because we want the user to be able to specify a
+        // regular expression subpattern.
+        $MYREQUEST['SEARCH_REGEX'] = '/'.str_replace('/', '\\/', $MYREQUEST['SEARCH']).'/i';
+        if (preg_match($MYREQUEST['SEARCH_REGEX'], 'test') === false) {
+            echo '<div class="error">Error: enter a valid regular expression as a search query.</div>';
+            break;
+        }
+    }
 
-	if($fieldname=='info') {
-		$cols+=2;
-		 echo '<th>',sortheader('T','Timeout',"&OB=".$MYREQUEST['OB']),'</th>';
-	}
-	echo '<th>',sortheader('D','Deleted at',"&OB=".$MYREQUEST['OB']),'</th></tr>';
+    echo
+        '<div class="info"><table cellspacing=0><tbody>',
+        '<tr class="sticky">',
+        '<th>',sortheader('S',$fieldheading,  "&OB=".$MYREQUEST['OB']),'</th>',
+        '<th>',sortheader('H','Hits',         "&OB=".$MYREQUEST['OB']),'</th>',
+        '<th>',sortheader('Z','Size',         "&OB=".$MYREQUEST['OB']),'</th>',
+        '<th>',sortheader('A','Last accessed',"&OB=".$MYREQUEST['OB']),'</th>',
+        '<th>',sortheader('M','Last modified',"&OB=".$MYREQUEST['OB']),'</th>',
+        '<th>',sortheader('C','Created at',   "&OB=".$MYREQUEST['OB']),'</th>';
 
-	// builds list with alpha numeric sortable keys
-	//
-	$list = array();
+    if($fieldname=='info') {
+        $cols+=2;
+         echo '<th>',sortheader('T','Timeout',"&OB=".$MYREQUEST['OB']),'</th>';
+    }
+    echo '<th>',sortheader('D','Deleted at',"&OB=".$MYREQUEST['OB']),'</th></tr>';
 
-	foreach($cache[$scope_list[$MYREQUEST['SCOPE']]] as $i => $entry) {
-		switch($MYREQUEST['SORT1']) {
-			case 'A': $k=sprintf('%015d-',$entry['access_time']);  	     break;
-			case 'H': $k=sprintf('%015d-',$entry['num_hits']); 	     break;
-			case 'Z': $k=sprintf('%015d-',$entry['mem_size']); 	     break;
-			case 'M': $k=sprintf('%015d-',$entry['mtime']);  break;
-			case 'C': $k=sprintf('%015d-',$entry['creation_time']);      break;
-			case 'T': $k=sprintf('%015d-',$entry['ttl']);		     break;
-			case 'D': $k=sprintf('%015d-',$entry['deletion_time']);      break;
-			case 'S': $k=$entry["info"];				     break;
-		}
-		if (!$AUTHENTICATED) {
-			// hide all path entries if not logged in
-			$list[$k.$entry[$fieldname]]=preg_replace('/^.*(\\/|\\\\)/','*hidden*/',$entry);
-		} else {
-			$list[$k.$entry[$fieldname]]=$entry;
-		}
-	}
+    // builds list with alpha numeric sortable keys
+    //
+    $list = array();
 
-	if ($list) {
-		// sort list
-		//
-		switch ($MYREQUEST['SORT2']) {
-			case "A":	krsort($list);	break;
-			case "D":	ksort($list);	break;
-		}
-
-		// output list
-		$i=0;
-		foreach($list as $k => $entry) {
-      if(!$MYREQUEST['SEARCH'] || preg_match($MYREQUEST['SEARCH'], $entry[$fieldname]) != 0) {
-		$sh=md5($entry["info"]);
-        $field_value = htmlentities(strip_tags($entry[$fieldname],''), ENT_QUOTES, 'UTF-8');
-        echo
-          '<tr id="key-'. $sh .'" class=tr-',$i%2,'>',
-          "<td class=td-0><a href=\"$MY_SELF&OB=",$MYREQUEST['OB'],"&SH=",$sh,"#key-". $sh ."\">",$field_value,'</a></td>',
-          '<td class="td-n center">',$entry['num_hits'],'</td>',
-          '<td class="td-n right">',$entry['mem_size'],'</td>',
-          '<td class="td-n center">',date(DATE_FORMAT,$entry['access_time']),'</td>',
-          '<td class="td-n center">',date(DATE_FORMAT,$entry['mtime']),'</td>',
-          '<td class="td-n center">',date(DATE_FORMAT,$entry['creation_time']),'</td>';
+    foreach($cache[$scope_list[$MYREQUEST['SCOPE']]] as $i => $entry) {
+        switch($MYREQUEST['SORT1']) {
+            case 'A': $k=sprintf('%015d-',$entry['access_time']);        break;
+            case 'H': $k=sprintf('%015d-',$entry['num_hits']);       break;
+            case 'Z': $k=sprintf('%015d-',$entry['mem_size']);       break;
+            case 'M': $k=sprintf('%015d-',$entry['mtime']);  break;
+            case 'C': $k=sprintf('%015d-',$entry['creation_time']);      break;
+            case 'T': $k=sprintf('%015d-',$entry['ttl']);            break;
+            case 'D': $k=sprintf('%015d-',$entry['deletion_time']);      break;
+            case 'S': $k=$entry["info"];                     break;
+        }
+        if (!$AUTHENTICATED) {
+            // hide all path entries if not logged in
+            $list[$k.$entry[$fieldname]]=preg_replace('/^.*(\\/|\\\\)/','*hidden*/',$entry);
+        } else {
+            $list[$k.$entry[$fieldname]]=$entry;
+        }
+    }
 
-        if($fieldname=='info') {
-          if($entry['ttl'])
-            echo '<td class="td-n center">'.$entry['ttl'].' seconds</td>';
-          else
-            echo '<td class="td-n center">None</td>';
+    if ($list) {
+        // sort list
+        //
+        switch ($MYREQUEST['SORT2']) {
+            case "A":   krsort($list);  break;
+            case "D":   ksort($list);   break;
         }
-        if ($entry['deletion_time']) {
 
-          echo '<td class="td-last center">', date(DATE_FORMAT,$entry['deletion_time']), '</td>';
-        } else if ($MYREQUEST['OB'] == OB_USER_CACHE) {
+        // output list
+        $i=0;
+        foreach($list as $k => $entry) {
+            if(empty($MYREQUEST['SEARCH_REGEX']) || preg_match($MYREQUEST['SEARCH_REGEX'], $entry[$fieldname]) != 0) {
+                $sh=md5($entry["info"]);
+                $field_value = htmlentities(strip_tags($entry[$fieldname],''), ENT_QUOTES, 'UTF-8');
+                if ($sh == $MYREQUEST["SH"]) {
+                    $shstr = "";
+                } else {
+                    $shstr = "&SH=" . $sh;
+                }
+                $href = "$MY_SELF&OB=" . $MYREQUEST['OB'] . (!empty($MYREQUEST['SEARCH']) ? "&SEARCH=" . urlencode($MYREQUEST['SEARCH']) : '') . $shstr . "#key-" . $sh;
+                echo
+                    '<tr id="key-'. $sh .'" class=tr-',$i%2,'>',
+                    "<td class=td-0><a href=\"$href\">",$field_value,'</a></td>',
+                    '<td class="td-n center">',$entry['num_hits'],'</td>',
+                    '<td class="td-n right">',$entry['mem_size'],'</td>',
+                    '<td class="td-n center">',date(DATE_FORMAT,$entry['access_time']),'</td>',
+                    '<td class="td-n center">',date(DATE_FORMAT,$entry['mtime']),'</td>',
+                    '<td class="td-n center">',date(DATE_FORMAT,$entry['creation_time']),'</td>';
 
-          echo '<td class="td-last center">';
-          echo '[<a href="', $MY_SELF, '&OB=', $MYREQUEST['OB'], '&DU=', urlencode($entry[$fieldkey]), '">Delete Now</a>]';
-          echo '</td>';
-        } else {
-          echo '<td class="td-last center"> &nbsp; </td>';
+                if($fieldname=='info') {
+                    if($entry['ttl']) {
+                        echo '<td class="td-n center">'.$entry['ttl'].' seconds</td>';
+                    } else {
+                        echo '<td class="td-n center">None</td>';
+                    }
+                }
+                if ($entry['deletion_time']) {
+                    echo '<td class="td-last center">', date(DATE_FORMAT,$entry['deletion_time']), '</td>';
+                } else if ($MYREQUEST['OB'] == OB_USER_CACHE) {
+                    echo '<td class="td-last center">';
+                    echo '[<a href="', $MY_SELF, '&OB=', $MYREQUEST['OB'],
+                        '&DU=', urlencode($entry[$fieldkey]),
+                        isset($MYREQUEST['SEARCH']) ? '&SEARCH=' . htmlspecialchars(urlencode($MYREQUEST['SEARCH'])) : '',
+                        '">Delete Now</a>]';
+                    echo '</td>';
+                } else {
+                    echo '<td class="td-last center"> &nbsp; </td>';
+                }
+                echo '</tr>';
+                if ($sh == $MYREQUEST["SH"]) {
+                    echo '<tr>';
+                    echo '<td colspan="7"><a class="entry-info" href="'.$href.'"><pre>'.htmlentities(print_r(apcu_fetch($entry['info']), 1)).'</pre></a></td>';
+                    echo '</tr>';
+                }
+                $i++;
+                if ($i == $MYREQUEST['COUNT']) {
+                    break;
+                }
+            }
         }
-        echo '</tr>';
-		if ($sh == $MYREQUEST["SH"]) {
-			echo '<tr>';
-			echo '<td colspan="7"><pre>'.htmlentities(print_r(apcu_fetch($entry['info']), 1)).'</pre></td>';
-			echo '</tr>';
-		}
-        $i++;
-        if ($i == $MYREQUEST['COUNT'])
-          break;
-      }
-		}
 
-	} else {
-		echo '<tr class=tr-0><td class="center" colspan=',$cols,'><i>No data</i></td></tr>';
-	}
-	echo <<< EOB
-		</tbody></table>
+    } else {
+        echo '<tr class=tr-0><td class="center" colspan=',$cols,'><i>No data</i></td></tr>';
+    }
+    echo <<< EOB
+        </tbody></table>
 EOB;
 
-	if ($list && $i < count($list)) {
-		echo "<a href=\"$MY_SELF&OB=",$MYREQUEST['OB'],"&COUNT=0\"><i>",count($list)-$i,' more available...</i></a>';
-	}
+    if ($list && $i < count($list)) {
+        echo "<a href=\"$MY_SELF&OB=",$MYREQUEST['OB'],"&COUNT=0\"><i>",count($list)-$i,' more available...</i></a>';
+    }
 
-	echo <<< EOB
-		</div>
+    echo <<< EOB
+        </div>
 EOB;
-	break;
+    break;
 
 // -----------------------------------------------
 // Version check
 // -----------------------------------------------
 case OB_VERSION_CHECK:
-	echo <<<EOB
-		<div class="info"><h2>APCu Version Information</h2>
-		<table cellspacing=0><tbody>
-		<tr>
-		<th></th>
-		</tr>
+    echo <<<EOB
+        <div class="info"><h2>APCu Version Information</h2>
+        <table cellspacing=0><tbody>
+        <tr>
+        <th></th>
+        </tr>
 EOB;
-  if (defined('PROXY')) {
-    $ctxt = stream_context_create( array( 'http' => array( 'proxy' => PROXY, 'request_fulluri' => True ) ) );
-    $rss = @file_get_contents("http://pecl.php.net/feeds/pkg_apcu.rss", False, $ctxt);
-  } else {
-    $rss = @file_get_contents("http://pecl.php.net/feeds/pkg_apcu.rss");
-  }
-	if (!$rss) {
-		echo '<tr class="td-last center"><td>Unable to fetch version information.</td></tr>';
-	} else {
-		$apcversion = phpversion('apcu');
+    if (defined('PROXY')) {
+        $ctxt = stream_context_create( array( 'http' => array( 'proxy' => PROXY, 'request_fulluri' => true ) ) );
+        $rss = @file_get_contents("https://pecl.php.net/feeds/pkg_apcu.rss", false, $ctxt);
+    } else {
+        $rss = @file_get_contents("https://pecl.php.net/feeds/pkg_apcu.rss");
+    }
+    if (!$rss) {
+        echo '<tr class="td-last center"><td>Unable to fetch version information.</td></tr>';
+    } else {
+        $apcversion = phpversion('apcu');
 
-		preg_match('!<title>APCu ([0-9.]+)</title>!', $rss, $match);
-		echo '<tr class="tr-0 center"><td>';
-		if (version_compare($apcversion, $match[1], '>=')) {
-			echo '<div class="ok">You are running the latest version of APCu ('.$apcversion.')</div>';
-			$i = 3;
-		} else {
-			echo '<div class="failed">You are running an older version of APCu ('.$apcversion.'),
-				newer version '.$match[1].' is available at <a href="http://pecl.php.net/package/APCu/'.$match[1].'">
-				http://pecl.php.net/package/APCu/'.$match[1].'</a>
-				</div>';
-			$i = -1;
+        if( preg_match('!<title>APCu ([0-9.]+)</title>!', $rss, $match) ) {
+			echo '<tr class="tr-0 center"><td>';
+			if (version_compare($apcversion, $match[1], '>=')) {
+				echo '<div class="ok">You are running the latest version of APCu ('.$apcversion.')</div>';
+				$i = 3;
+			} else {
+				echo '<div class="failed">You are running an older version of APCu ('.$apcversion.'),
+					newer version '.$match[1].' is available at <a href="https://pecl.php.net/package/APCu/'.$match[1].'">
+					https://pecl.php.net/package/APCu/'.$match[1].'</a>
+					</div>';
+				$i = -1;
+			}
+			echo '</td></tr>';
 		}
-		echo '</td></tr>';
-		echo '<tr class="tr-0"><td><h3>Change Log:</h3><br/>';
+        echo '<tr class="tr-0"><td><h3>Change Log:</h3><br/>';
 
-		preg_match_all('!<(title|description)>([^<]+)</\\1>!', $rss, $match);
-		next($match[2]); next($match[2]);
+        preg_match_all('!<(title|description)>([^<]+)</\\1>!', $rss, $match);
+        $changelog = $match[2];
 
-		while (list(,$v) = each($match[2])) {
-			list(,$ver) = explode(' ', $v, 2);
-			if ($i < 0 && version_compare($apcversion, $ver, '>=')) {
-				break;
-			} else if (!$i--) {
-				break;
-			}
-			echo "<b><a href=\"http://pecl.php.net/package/APCu/$ver\">".htmlspecialchars($v, ENT_QUOTES, 'UTF-8')."</a></b><br><blockquote>";
-			echo nl2br(htmlspecialchars(current($match[2]), ENT_QUOTES, 'UTF-8'))."</blockquote>";
-			next($match[2]);
-		}
-		echo '</td></tr>';
-	}
-	echo <<< EOB
-		</tbody></table>
-		</div>
+        for ($j = 2; $j + 1 < count($changelog); $j += 2) {
+            $v = $changelog[$j];
+            list(, $ver) = explode(' ', $v, 2);
+            if ($i < 0 && version_compare($apcversion, $ver, '>=')) {
+                break;
+            } else if (!$i--) {
+                break;
+            }
+            $changes = $changelog[$j + 1];
+            echo "<b><a href=\"https://pecl.php.net/package/APCu/$ver\">".htmlspecialchars($v, ENT_QUOTES, 'UTF-8')."</a></b><br><blockquote>";
+            echo nl2br(htmlspecialchars($changes, ENT_QUOTES, 'UTF-8'))."</blockquote>";
+        }
+        echo '</td></tr>';
+    }
+    echo <<< EOB
+        </tbody></table>
+        </div>
 EOB;
-	break;
+    break;
 
 }
 
-echo <<< EOB
-	</div>
+    echo <<< EOB
+    </div>
 EOB;
 
 ?>
 
-<!-- <?php echo "\nBased on APCGUI By R.Becker\n$VERSION\n"?> -->
+<!-- <?php echo "\nBased on APCGUI By R.Becker\n"?> -->
 </body>
 </html>