debug_print_backtrace.php.svn-base

来自「PHP 知识管理系统（基于树结构的知识管理系统）, 英文原版的PHP源码。」· SVN-BASE 代码 · 共 67 行

<?php
// +----------------------------------------------------------------------+
// | PHP Version 4                                                        |
// +----------------------------------------------------------------------+
// | Copyright (c) 1997-2004 The PHP Group                                |
// +----------------------------------------------------------------------+
// | This source file is subject to version 3.0 of the PHP license,       |
// | that is bundled with this package in the file LICENSE, and is        |
// | available at through the world-wide-web at                           |
// | http://www.php.net/license/3_0.txt.                                  |
// | If you did not receive a copy of the PHP license and are unable to   |
// | obtain it through the world-wide-web, please send a note to          |
// | [e-mail] so we can mail you a copy immediately.               |
// +----------------------------------------------------------------------+
// | Authors: Laurent Laville <[e-mail]>                  |
// |          Aidan Lister <[e-mail]>                                |
// +----------------------------------------------------------------------+
//
// $Id$


/**
 * Replace debug_print_backtrace()
 *
 * @category    PHP
 * @package     PHP_Compat
 * @link        http://php.net/function.debug_print_backtrace
 * @author      Laurent Laville <[e-mail]>
 * @author      Aidan Lister <[e-mail]>
 * @version     $Revision$
 * @since       PHP 5
 * @require     PHP 4.0.0
 */
if (!function_exists('debug_print_backtrace')) {
    function debug_print_backtrace()
    {
        // Get backtrace
        $backtrace = debug_backtrace();

        // Unset call to debug_print_backtrace
        array_shift($backtrace);
        
        // Iterate backtrace
        $calls = array();
        foreach ($backtrace as $i => $call) {
            $location = $call['file'] . ':' . $call['line'];
            $function = (isset($call['class'])) ?
                $call['class'] . '.' . $call['function'] :
                $call['function'];
           
            $params = '';
            if (isset($call['args'])) {
                $params = implode(', ', $call['args']);
            }

            $calls[] = sprintf('#%d  %s(%s) called at [%s]',
                $i,
                $function,
                $params,
                $location); 
        }

        echo implode("\n", $calls);
    }
}

?>