header_remove()

header_remove() — Remove previously set headers.

Built-in function of PHP 8.5. The manual lists it as available in PHP 5 >= 5.3.0, PHP 7, PHP 8. This page is the reference card: signature, parameters and return value, plus the changelog and the example the manual provides.

What it does

Removes an HTTP header previously set using header().

Signature

header_remove(?string $name = null): void

Parameters

ParameterTypeWhat it takes
$name?stringThe header name to be removed. When null, all previously set headers are removed.

Return value

No value is returned.

Example

A runnable snippet:

header("X-Foo: Bar"); header("X-Bar: Baz"); header_remove("X-Foo");

Output:

X-Bar: Baz

Changelog

VersionChange
8.0.0name is nullable now.

See also

header(), headers_sent()

All PHP 8.5 built-in functions

Reference card built from the PHP manual page header_remove() (PHP documentation, CC BY 3.0). The page is generated from the manual, so the wording of the parameter and return value text follows php.net.