WordPress Developer Resources

WP_HTTP_Response::header( string $key, string $value, bool $replace = true )

Sets a single HTTP header.

Parameters

$keystringrequired: Header name.
$valuestringrequired: Header value.
$replacebooloptional: Whether to replace an existing header of the same name.

Default:true

Source

public function header( $key, $value, $replace = true ) {
	if ( $replace || ! isset( $this->headers[ $key ] ) ) {
		$this->headers[ $key ] = $value;
	} else {
		$this->headers[ $key ] .= ', ' . $value;
	}
}

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Changelog

Version	Description
4.4.0	Introduced.

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