class_exception.php

一个基于web的rpg游戏源代码

<?php
/**
* Netlands World Server is the coordinator of the VR in the Netlands Project
* Copyright (C) 2002 Ricard Pillosu
* 
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* 
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
* GNU General Public License for more details.
* 
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
*/

/**
* Standard class for exceptions.
*
* @version $Id: class_exception.php,v 1.1 2002/09/25 17:30:12 antoniob Exp $
* @author Ricard Pillosu <[e-mail]>
* @copyright Ricard Pillosu 2002
* @since Fri, 06 Sep 2002 16:51:06 +0200
*/
class exception {
    /**
    * @var string
    */
    private $error_msg;
    /**
    * @var string
    */
    private $error_function;
    /**
    * @var string
    */
    private $error_class;
    /**
    * @var string
    */
    private $error_file;
    /**
    * @var integer
    */
    private $error_line;
    /**
    * @var array
    */
    private $other_info;

    function __construct($error='', $backtrace='') {

        // Get error message (most basic)
        if(empty($error)) {
            $error = "Unknown exception";
        }
        $this->error_msg = $error;    

        // Get backtrace information (most complete)
        if(is_array($backtrace)) {
            foreach($backtrace as $trace) {
                if(isset($trace['class'])) {
                    $this->error_class[] = $trace['class'];
                }
                $this->error_function[] = $trace['function'];
                $this->error_line[] = $trace['line'];
                $this->error_file[] = $trace['file'];
            }
        }

        // Get all other information we could print (normally bad var values)
        $this->other_info = array();
        if(func_num_args() > 2) {
            $other_args = func_get_args();
            array_shift($other_args);
            array_shift($other_args);
            $this->other_info[] = $other_args;
        }
    }

    function get_msg()
    {
        return($this->error_msg);    
    }

    function get_all() 
    {
        $msg = "MESSAGE: ".$this->error_msg."\n";
        for($i=0; $i<count($this->error_function); $i++) {
            if(isset($this->error_class[$i])) {
                $class = $this->error_class[$i].'::';
            } else {
                $class= '';
            }
            if($i > 0) {
                $c = "< ";
            } else {
                $c = '';
            }
            $file = basename($this->error_file[$i]);
            $msg.= sprintf(" %s%s%s [%s:%s]\n", 
                $c,
                $class,
                $this->error_function[$i],
                $file,
                $this->error_line[$i]);
        }
        foreach($this->other_info as $info) {
            $msg.= " (".$this->svar_dump($info).")";
        }
        return($msg);
    }

    /**
    * like var_dump but returns result
    *
    * @var  mixed
    */
    function svar_dump($var)
    {
        ob_start();
        var_dump($var);
        $result = ob_get_contents();
        ob_end_clean();
        return($result);
    }

}

?>