Retrieve a specific component from a parsed URL array.

$url_parts array|false Required

The parsed URL. Can be false if the URL failed to parse.

$component int Optional

The specific component to retrieve. Use one of the PHP predefined constants to specify which one.
Defaults to -1 (= return all parts as an array).

Default: -1

mixed False on parse failure; Array of URL components on success; When a specific component has been requested: null if the component doesn't exist in the given URL; a string or - in the case of PHP_URL_PORT - integer when it does. See parse_url()'s return values.

File: wp-includes/http.php. View all references

function _get_component_from_parsed_url_array( $url_parts, $component = -1 ) {
	if ( -1 === $component ) {
		return $url_parts;
	}

	$key = _wp_translate_php_url_constant_to_key( $component );
	if ( false !== $key && is_array( $url_parts ) && isset( $url_parts[ $key ] ) ) {
		return $url_parts[ $key ];
	} else {
		return null;
	}
}