PHP http_response_code () function usage and example

PHP HTTP 　Reference Manual

The http_response_code () function retrieves/Set the HTTP response status code.

Syntax

int　http_response_code　([　int　$response_code　]　)

Definition and Usage

It is used to get or set the HTTP response

Return Value

If response_code is provided, it will return the previous status code. If response_code is not provided, it will return the current status code. In a Web server environment, the default values for these status codes are 200.
If called in a non-Web server environment (such as CLI applications), calling without response_code will return FALSE. In a non-Web server environment, providing response_code will return TRUE (only when the status code has not been set previously).

Parameter

Online Example

Try the following example

<?php
　　　var_dump(http_response_code());　　
　　　http_response_code(404);
?>

The following code will set the response code to404。

bool(false)

PHP HTTP 　Reference Manual