How PHP captures the error and displays friendly information

Catch error, cannot use try{...} The way of catch () {}, PHP inside try{...} Catch is an exception that needs to be thrown by itself to catch and distinguish it from other languages.

Second, you can achieve the same effect using the following methods:

Error_reporting (0)//Set shield system error prompt, put the top of the page

$string = file_get_contents ("index.html");/Normal Code
echo 5/0;//Change: 5/8//Normal code

If the normal code fails, it is handled:
$arr =error_get_last ()//Gets the error message that just occurred, returns an array, and returns null without error.
if (Isset ($arr))//is not NULL, it indicates an error
{
echo "went wrong, error message:";
Print_r ($arr); The specific error message can be modified as needed.
Exit
}

--------------------------------------------------

"Echo 5/8;" Output:

0.625

"Echo 5/0;" Output:

Error message:
Array (

[Type] => 2

[Message] => division by zero

[File] => d:wampwwwsinaeditornewfile.php

[Line] => 13

)