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Source View: wp_print_styles

To save our bandwidth, we show only a snippet of code around each occurence of the hook. View complete file in SVN (without highlighting).

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
25 function wp_print_styles( $handles = false ) {
26      if ( '' === $handles ) // for wp_head
27           $handles = false;
28      /**
29       * Fires before styles in the $handles queue are printed.
30       *
31       * @since 2.6.0
32       */
33      if ( ! $handles )
34           do_action( 'wp_print_styles' );
35
36      global $wp_styles;
37      if ( ! is_a( $wp_styles, 'WP_Styles' ) ) {
38           if ( ! did_action( 'init' ) )
39                _doing_it_wrong( __FUNCTION__, sprintf( __( 'Scripts and styles should not be registered or enqueued until the %1$s, %2$s, or %3$s hooks.' ),
40                     '<code>wp_enqueue_scripts</code>', '<code>admin_enqueue_scripts</code>', '<code>login_enqueue_scripts</code>' ), '3.3' );
41
42           if ( !$handles )
43                return array(); // No need to instantiate if nothing is there.