我想扩展在调用getMessage时返回自定义消息的异常类。
class MY_Exceptions extends CI_Exceptions{
function __construct(){
parent::__construct();
}
function getMessage(){
$msg = parent::getMessage();
return "ERROR - ".$msg;
}
}
MY_Exceptions放在核心文件夹中。抛出/处理异常如下:
try{
throw new Exception('a message');
}catch (Exception $e) {
echo $e->getMessage();
}
目的是获得“错误 - 一条消息”。但它总是返回“消息”。当我尝试调试时,控件永远不会进入MY_Exception类。有什么我想念的吗?
答案 0 :(得分:5)
创建文件核心/ MY_Exceptions.php
<?php
if ( ! defined('BASEPATH')) exit('No direct script access allowed');
class MY_Exceptions extends Exception {
public function __construct($message, $code = 0, Exception $previous = null) {
parent::__construct($message, $code, $previous);
}
// custom string representation of object
public function __toString() {
return __CLASS__ . ": [{$this->code}]: {$this->message}\n"; //edit this to your need
}
}
class MyCustomExtension extends MY_Exceptions {} //define your exceptions