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header_remove

PHP function Edit on GitHub ✎

(PHP 5 >= 5.3.0, PHP 7, PHP 8)

Remove previously set headers

Description

header_remove(string|null $name = null): void

Removes an HTTP header previously set using header().

name: The header name to be removed. When null, all previously set headers are removed.
Note
This parameter is case-insensitive.

Void

Version	Description
8.0.0	`name` is nullable now.

Unsetting specific header.

php

<?php
header("X-Foo: Bar");
header("X-Bar: Baz");
header_remove("X-Foo"); 
?>

The above example will output something similar to:

output

X-Bar: Baz

Unsetting all previously set headers.

php

<?php
header("X-Foo: Bar");
header("X-Bar: Baz");
header_remove(); 
?>

The above example will output something similar to:

output

Caution

This function will remove all headers set by PHP, including cookies, session and the X-Powered-By headers.

Sapi