unregister_default_headers( string|array $header )

Unregister default headers.

Description Description

This function must be called after register_default_headers() has already added the header you want to remove.

See also See also

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Parameters Parameters


(string|array) (Required) The header string id (key of array) to remove, or an array thereof.

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Return Return

(bool|void) A single header returns true on success, false on failure. There is currently no return value for multiple headers.

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Source Source

File: wp-includes/theme.php

function unregister_default_headers( $header ) {
	global $_wp_default_headers;
	if ( is_array( $header ) ) {
		array_map( 'unregister_default_headers', $header );
	} elseif ( isset( $_wp_default_headers[ $header ] ) ) {
		unset( $_wp_default_headers[ $header ] );
		return true;
	} else {
		return false;

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Changelog Changelog

Version Description
3.0.0 Introduced.

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