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<?php
/**
* @package kernel
* @author spiderr <spiderr@bitweaver.org>
* Copyright (c) 2025 bitweaver.org, All Rights Reserved
* This source file is subject to the 2.0 GNU GENERAL PUBLIC LICENSE.
*
* BitLogger: Simple logging library for PHP CLI applications
* Supports PSR-3 log levels and site instance context
*/
/**
* Class to handle logging with site instance context
*/
class BitLogger {
private $logFile;
private $instance;
// PSR-3 log levels
const EMERGENCY = 'EMERGENCY';
const ALERT = 'ALERT';
const CRITICAL = 'CRITICAL';
const ERROR = 'ERROR';
const WARNING = 'WARNING';
const NOTICE = 'NOTICE';
const INFO = 'INFO';
const DEBUG = 'DEBUG';
/**
* Initialize logger with log file path and site instance
* @param string $logFile Path to log file
* @param string $instance Site instance identifier
*/
public function __construct(string $logFile, string $instance = 'global') {
$this->logFile = $logFile;
$this->instance = $instance;
// Ensure log file directory exists
$dir = dirname($logFile);
if (!is_dir($dir)) {
mkdir($dir, 0755, true);
}
}
/**
* Log a message with the specified level
* @param string $level Log level (e.g., INFO, ERROR)
* @param string $message Message to log
* @param array $context Additional context (optional)
*/
public function log(string $level, string $message, array $context = []) {
$validLevels = [
self::EMERGENCY,
self::ALERT,
self::CRITICAL,
self::ERROR,
self::WARNING,
self::NOTICE,
self::INFO,
self::DEBUG,
];
// Validate log level
$level = strtoupper($level);
if (!in_array($level, $validLevels)) {
$this->log(self::ERROR, "Invalid log level: $level");
return;
}
// Format log message
$timestamp = date('Y-m-d H:i:s');
$contextStr = $context ? ' ' . json_encode($context) : '';
$logLine = "[$timestamp] [{$this->instance}] [$level] $message$contextStr\n";
// Write to log file (thread-safe)
file_put_contents($this->logFile, $logLine, FILE_APPEND | LOCK_EX);
}
// Convenience methods for each log level
public function emergency(string $message, array $context = []) {
$this->log(self::EMERGENCY, $message, $context);
}
public function alert(string $message, array $context = []) {
$this->log(self::ALERT, $message, $context);
}
public function critical(string $message, array $context = []) {
$this->log(self::CRITICAL, $message, $context);
exit;
}
public function error(string $message, array $context = []) {
$this->log(self::ERROR, $message, $context);
}
public function warning(string $message, array $context = []) {
$this->log(self::WARNING, $message, $context);
}
public function notice(string $message, array $context = []) {
$this->log(self::NOTICE, $message, $context);
}
public function info(string $message, array $context = []) {
$this->log(self::INFO, $message, $context);
}
public function debug(string $message, array $context = []) {
$this->log(self::DEBUG, $message, $context);
}
}
/* Example usage
if (php_sapi_name() === 'cli' && basename(__FILE__) === 'logger.php') {
$logger = new BitLogger('logs/app.log', 'test_instance');
$logger->info('Application started');
$logger->warning('Low disk space', ['free_space' => '500MB']);
$logger->error('Failed to connect to database', ['error_code' => 1001]);
}
*/
|
