Customize PHP error reporting handling

我们 Let PHP prompt the error message

The function used by the error information

Set_error_handler ()
Set_error_handler (error_handler, error_types); Specifies the function to run when an error occurs.
          error_types     Optional. Specifies at which error reporting level user-defined errors are displayed. The default is "E_ALL".
                                                                              
                                        Use the trigger_error() function to trigger an error message under user-specified conditions
People think of the trigger function in jquery
        Function:

                  Used to trigger an error message under user-specified conditions. It is used with the built-in error handler or with user-defined functions created with the set_error_handler() function.

                 If an illegal error type is specified, this function returns false, otherwise it returns true.
Syntax:

trigger_error(error_message,error_types)

error_message Required. Specifies the error message. Length limit is 1024 characters.                  error_types     Optional. Specifies the error type of the error message. Possible values: E_USER_ERROR E_USER_WARNING E_USER_NOTICE
   Example:

<?php header(&#39;Content-type:text/html;charset=utf8&#39;);
    error_reporting(E_ALL);

    set_error_handler(&#39;set_error_message&#39;);
    echo $a;

    /**
    * 发生错误运行的函数
    * $errno    错误信息编码
    * $errstr   错误信息
    * $errfile  错误的文件
    * $errline  错误的行数
    */
    function set_error_message($errno, $errstr, $errfile, $errline){
        echo &#39;错误信息编码为:&#39;.$errno.&#39;<br/>';
        echo '错误信息为:'.$errstr.'<br>';
        echo '错误文件为:'.$errfile.'<br>';
        echo '错误行数为:'.$errline;
        die();
    }


?>

The above introduces the custom PHP error report processing method, including aspects of the content. I hope it will be helpful to friends who are interested in PHP tutorials.