The specific application of register_shutdown_function function in php (including detailed explanation)

Application of register_shutdown_function in php (including detailed explanation)

In some cases, we need to execute the program At the end, do some follow-up processing work. At this time, PHP's register_shutdown_function function can help us implement this function.

1 Introduction to the register_shutdown_function function

When the PHP program is executed, the register_shutdown_function function is automatically executed. This function requires a parameter to specify who handles these functions. follow-up work. Among them, the program execution is completed, which is divided into the following situations:

⑴ An error occurs during the execution of the php code

⑵ The php code is executed successfully

⑶ PHP code running timeout

⑷ The page was forced to stop by the user

2 Steps to use the register_shutdown_function function

The use of the register_shutdown_function function is very simple and only requires 2 steps at most.

1. Customize a php class with the name CustomHandle.php, as follows:

<?php
namespace com\antp;
class CustomHandle {
public static function systemError() {
$message = &#39;&#39;;
if ($error = error_get_last()) {
//程序报错处理，通常会跳转到用户自定义的页面，同时记录错误信息
$separator = "\r\n";
$message .= "错误:" . $error[&#39;message&#39;] . $separator;
$message .= "文件:" . $error[&#39;file&#39;] . $separator;
$message .= "行数:" . $error[&#39;line&#39;] . $separator;
$message = str_replace($separator, &#39;<br />&#39;, $message);
header(&#39;Location:http://&#39;.$_SERVER[&#39;HTTP_HOST&#39;].&#39;/error.php&#39;);
exit;
}else{
//此处处理其它一些业务逻辑
}
}
}

2. Introduce the registration function

Introduce the CustomHandle.php file at the program entrance, and at the same time, register the register_shutdown_function function, as follows:

require 'CustomHandle.php';
register_shutdown_function(array('com\antp\CustomHandle','systemError'));

At this time, regardless of whether your php code is executed successfully or not, it will eventually be in the CustomHandle class systemError method.

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Copyright statement: This article is an original article by CSDN blogger "Uncle Muyu" and follows CC 4.0 BY-SA Copyright agreement, please attach the original source link and this statement when reprinting.

Original link: https://blog.csdn.net/tdcqfyl/article/details/52291237

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