wp_enqueue_script( string $handle, string $src = '', array $deps = array(), string|bool|null $ver = false, bool $in_footer = false )

Enqueue a script.


Registers the script if $src provided (does NOT overwrite), and enqueues it.

See also



(string) (Required) Name of the script. Should be unique.


(string) (Optional) Full URL of the script, or path of the script relative to the ClassicPress root directory.

Default value: ''


(array) (Optional) An array of registered script handles this script depends on.

Default value: array()


(string|bool|null) (Optional) String specifying script version number, if it has one, which is added to the URL as a query string for cache busting purposes. If version is set to false, a version number is automatically added equal to current installed ClassicPress version. If set to null, no version is added.

Default value: false


(bool) (Optional) Whether to enqueue the script before </body> instead of in the <head>. Default 'false'.

Default value: false


File: wp-includes/functions.wp-scripts.php

function wp_enqueue_script( $handle, $src = '', $deps = array(), $ver = false, $in_footer = false ) {
	$wp_scripts = wp_scripts();

	_wp_scripts_maybe_doing_it_wrong( __FUNCTION__ );

	if ( $src || $in_footer ) {
		$_handle = explode( '?', $handle );

		if ( $src ) {
			$wp_scripts->add( $_handle[0], $src, $deps, $ver );

		if ( $in_footer ) {
			$wp_scripts->add_data( $_handle[0], 'group', 1 );

	$wp_scripts->enqueue( $handle );


Version Description
WP-2.1.0 Introduced.