How to use the PHP error handling function register_shutdown_function

This article mainly introduces the use examples of the PHP error handling function register_shutdown_function. Friends who need it can refer to it

When the program is running online, if a BUG is encountered, you want not to output error information on the front end, but at the same time Notify developers by email in time, and the register_shutdown_function function can come in handy.

Register a function that will be called after the script execution is completed or after exit().

Can be called multiple timesregister_shutdown_function(), these registered callbacks will be called sequentially in the order in which they were registered. If you call exit() inside a registered method, all processing will be aborted and other registered abort callbacks will not be called again.

register_shutdown_functionFunction, when our script execution is completed or unexpectedly dies, causing PHP execution to be shut down, our function will be called and can be used in conjunction with error_get_last to obtain error information.

register_shutdown_function ( callable $callback [, mixed $parameter [, mixed $... ]] )

callable callback function

parameter can be passed in additional parameters. Parameters passed to the abort function

DEMO1:

//关闭错误报告 error_reporting(0); //实现自己的错误信息展示 register_shutdown_function(‘myShutdown‘); $debug = true; function myShutdown() { global $debug; // 无论错误是否发生，这句都会执行 echo ‘ERROR‘ , ‘
‘; if (!$debug) { $error = error_get_last(); // todo 可以在这里做邮件发送提醒 或 错误日志收集 var_export($error); } }

DEMO2

// 回到函数带参数：记录当前请求URL $current_page = htmlspecialchars($_SERVER[‘SCRIPT_NAME‘], ENT_QUOTES, ‘UTF-8‘); $current_page .= $_SERVER[‘QUERY_STRING‘] ? ‘?‘.htmlspecialchars($_SERVER[‘QUERY_STRING‘], ENT_QUOTES, ‘UTF-8‘) : ‘‘; register_shutdown_function(function ($current_page) { //todo send email or log }, $current_page); error_get_last()

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