PHP http_response_code() Function Usage and Example

PHP HTTP 　Reference Manual

The http_response_code() function retrieves/sets 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 returns the previous status code. If response_code is not provided, it returns the current status code. In the Web server environment, the default values for these status codes are all 200.
If response_code is called in a non-Web server environment (such as CLI applications), FALSE is returned if response_code is not provided. In non-Web server environments, providing response_code returns TRUE (only if 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 above code sets the response code to 404.

bool(false)

PHP HTTP 　Reference Manual