PHP Classes

File: error_handler.php

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  Classes of Manuel Lemos   Log watcher   error_handler.php   Download  
File: error_handler.php
Role: Auxiliary script
Content type: text/plain
Description: Example of an error handler function that logs the error message, the file name, line number, function name, class name, including backtrace of all the function calls that lead to the line where the error occurred.
Class: Log watcher
Watch a log file and e-mail newly added lines
Author: By
Last change:
Date: 21 years ago
Size: 1,402 bytes
 

Contents

Class file image Download
<?php

Function error_handler($error,$message,$file,$line)
{
    if($error & error_reporting())
    {
        $log=array();
        switch($error)
        {
            case E_ERROR:
                $type='FATAL';
                break;
            case E_WARNING:
                $type='ERROR';
                break;
            case E_NOTICE:
                $type='WARNING';
                break;
            default:
                $type='Unknown error type ['.$error.']';
                break;
        }
        $log[]=$type.': '.$message.' in line '.$line.' of file '.$file.', PHP '.PHP_VERSION.' ('.PHP_OS.')';
        if(function_exists('debug_backtrace'))
        {
            $backtrace=debug_backtrace();
            for($level=1;$level<count($backtrace);$level++)
            {
                $message='File: '.$backtrace[$level]['file'].' Line: '.$backtrace[$level]['line'].' Function: ';
                if(IsSet($backtrace[$level]['class']))
                    $message.='(class '.$backtrace[$level]['class'].') ';
                if(IsSet($backtrace[$level]['type']))
                    $message.=$backtrace[$level]['type'].' ';
                $message.=$backtrace[$level]['function'].'(';
                if(IsSet($backtrace[$level]['args']))
                {
                    for($argument=0;$argument<count($backtrace[$level]['args']);$argument++)
                    {
                        if($argument>0)
                            $message.=', ';
                        $message.=serialize($backtrace[$level]['args'][$argument]);
                    }
                }
                $message.=')';
                $log[]=$message;
            }
        }
        error_log(implode("\n\t",$log));
    }
    if($type==E_ERROR)
        exit(1);
}

set_error_handler('error_handler');

?>