PHP restore_error_handler() 函数 - PHP 5 函数参考手册

PHP restore_error_handler() 函数恢复之前的错误处理程序

该函数用于在通过 set_error_handler() 函数改变后恢复之前的错误处理程序

函数原型

restore_error_handler()

返回值

总是返回 TRUE

注意

之前的错误处理程序可能是在内建的错误处理程序或用户自定义函数中构建的

范例

<?php

//custom error handler function
function customError($errno, $errstr, $errfile, $errline)
{
    echo "<b>Custom error:</b> [$errno] $errstr<br />";
    echo " Error on line $errline in $errfile<br />";
}

//set user-defined error handler
set_error_handler("customError");

$test=2;

//trigger error
if ($test>1)
{
    trigger_error("A custom error has been triggered");
}

//restore built-in error handler
restore_error_handler();

//trigger error again
if ($test>1)
{
    trigger_error("A custom error has been triggered");
}

运行以上 PHP 范例，输出结果如下

Custom error: [1024] A custom error has been triggeredError on line 14 in C:\webfolder\test.php
Notice: A custom error has been triggered in C:\webfolder\test.php on line 21