scribu · October 14, 2010 07:25 · EdwardAEvansJr · Mar 14, 2014 · nsieber · Jun 6, 2015
diff --git a/backtrace-errors.php b/backtrace-errors.php
 <?php
 // Forked from: https://stackoverflow.com/questions/1159216/how-can-i-get-php-to-produce-a-backtrace-upon-errors/1159235#1159235

 function process_error_backtrace($errno, $errstr, $errfile, $errline) {
 	if(!(error_reporting() & $errno))
 		return;
 	switch($errno) {
 	case E_WARNING	    :
 	case E_USER_WARNING :
 	case E_STRICT	    :
 	case E_NOTICE	    :
 	case E_DEPRECATED   :
 	case E_USER_NOTICE  :
 		$type = 'warning';
 		$fatal = false;
 		break;
 	default			 :
 		$type = 'fatal error';
 		$fatal = true;
 		break;
 	}
 	$trace = debug_backtrace();
 	array_shift($trace);
 	if(php_sapi_name() == 'cli') {
 		echo 'Backtrace from ' . $type . ' \'' . $errstr . '\' at ' . $errfile . ' ' . $errline . ':' . "\n";
 		foreach($trace as $item)
 			echo '  ' . (isset($item['file']) ? $item['file'] : '<unknown file>') . ' ' . (isset($item['line']) ? $item['line'] : '<unknown line>') . ' calling ' . $item['function'] . '()' . "\n";
 	} else {
 		echo '<p class="error_backtrace">' . "\n";
 		echo '  Backtrace from ' . $type . ' \'' . $errstr . '\' at ' . $errfile . ' ' . $errline . ':' . "\n";
 		echo '  <ol>' . "\n";
 		foreach($trace as $item)
 			echo '	<li>' . (isset($item['file']) ? $item['file'] : '<unknown file>') . ' ' . (isset($item['line']) ? $item['line'] : '<unknown line>') . ' calling ' . $item['function'] . '()</li>' . "\n";
 		echo '  </ol>' . "\n";
 		echo '</p>' . "\n";
 	}
 	if(ini_get('log_errors')) {
 		$items = array();
 		foreach($trace as $item)
 			$items[] = (isset($item['file']) ? $item['file'] : '<unknown file>') . ' ' . (isset($item['line']) ? $item['line'] : '<unknown line>') . ' calling ' . $item['function'] . '()';
 		$message = 'Backtrace from ' . $type . ' \'' . $errstr . '\' at ' . $errfile . ' ' . $errline . ': ' . join(' | ', $items);
 		error_log($message);
 	}

 	flush();

 	if($fatal)
 		exit(1);
 }
 set_error_handler('process_error_backtrace');
	<?php
	// Forked from: https://stackoverflow.com/questions/1159216/how-can-i-get-php-to-produce-a-backtrace-upon-errors/1159235#1159235

	function process_error_backtrace($errno, $errstr, $errfile, $errline) {
	if(!(error_reporting() & $errno))
	return;
	switch($errno) {
	case E_WARNING :
	case E_USER_WARNING :
	case E_STRICT :
	case E_NOTICE :
	case E_DEPRECATED :
	case E_USER_NOTICE :
	$type = 'warning';
	$fatal = false;
	break;
	default :
	$type = 'fatal error';
	$fatal = true;
	break;
	}
	$trace = debug_backtrace();
	array_shift($trace);
	if(php_sapi_name() == 'cli') {
	echo 'Backtrace from ' . $type . ' \'' . $errstr . '\' at ' . $errfile . ' ' . $errline . ':' . "\n";
	foreach($trace as $item)
	echo ' ' . (isset($item['file']) ? $item['file'] : '<unknown file>') . ' ' . (isset($item['line']) ? $item['line'] : '<unknown line>') . ' calling ' . $item['function'] . '()' . "\n";
	} else {
	echo '<p class="error_backtrace">' . "\n";
	echo ' Backtrace from ' . $type . ' \'' . $errstr . '\' at ' . $errfile . ' ' . $errline . ':' . "\n";
	echo ' <ol>' . "\n";
	foreach($trace as $item)
	echo ' <li>' . (isset($item['file']) ? $item['file'] : '<unknown file>') . ' ' . (isset($item['line']) ? $item['line'] : '<unknown line>') . ' calling ' . $item['function'] . '()</li>' . "\n";
	echo ' </ol>' . "\n";
	echo '</p>' . "\n";
	}
	if(ini_get('log_errors')) {
	$items = array();
	foreach($trace as $item)
	$items[] = (isset($item['file']) ? $item['file'] : '<unknown file>') . ' ' . (isset($item['line']) ? $item['line'] : '<unknown line>') . ' calling ' . $item['function'] . '()';
	$message = 'Backtrace from ' . $type . ' \'' . $errstr . '\' at ' . $errfile . ' ' . $errline . ': ' . join(' \| ', $items);
	error_log($message);
	}

	flush();

	if($fatal)
	exit(1);
	}
	set_error_handler('process_error_backtrace');