Source View: wp_print_scripts

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Understanding Source Code

The best way to understand what a hook does is to look at where it occurs in the source code.

  • Action hooks look like this: do_action( "hook_name" )
  • Filter hooks look like this: apply_filters( "hook_name", "what_to_filter" ).

Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.

Source View

Line Code
24  * @param array|bool $handles Optional. Scripts to be printed. Default 'false'.
25  * @return array On success, a processed array of WP_Dependencies items; otherwise, an empty array.
26  */
27 function wp_print_scripts( $handles = false ) {
28      /**
29       * Fires before scripts in the $handles queue are printed.
30       *
31       * @since 2.1.0
32       */
33      do_action( 'wp_print_scripts' );
34      if ( '' === $handles ) // for wp_head
35           $handles = false;
36
37      global $wp_scripts;
38      if ( ! is_a( $wp_scripts, 'WP_Scripts' ) ) {
39           if ( ! did_action( 'init' ) )
40                _doing_it_wrong( __FUNCTION__, sprintf( __( 'Scripts and styles should not be registered or enqueued until the %1$s, %2$s, or %3$s hooks.' ),
41                     '<code>wp_enqueue_scripts</code>', '<code>admin_enqueue_scripts</code>', '<code>login_enqueue_scripts</code>' ), '3.3' );
42