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To save our bandwidth, we show only a snippet of code around each occurence of the hook. View complete file in SVN (without highlighting).
The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )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.
This hook occurs 2 times in this file.
| Line | Code |
|---|---|
| 2491 | * @global bool $concatenate_scripts |
| 2492 | * |
| 2493 | * @return array |
| 2494 | */ |
| 2495 | function print_head_scripts() { |
| 2496 | global $concatenate_scripts; |
| 2497 | |
| 2498 | if ( ! did_action( 'wp_print_scripts' ) ) { |
| 2499 | /** This action is documented in wp-includes/functions.wp-scripts.php */ |
| 2500 | do_action( 'wp_print_scripts' ); |
| 2501 | } |
| 2502 | |
| 2503 | $wp_scripts = wp_scripts(); |
| 2504 | |
| 2505 | script_concat_settings(); |
| 2506 | $wp_scripts->do_concat = $concatenate_scripts; |
| 2507 | $wp_scripts->do_head_items(); |
| 2508 | |
| 2509 | /** |
| Line | Code |
| 2609 | * @since 2.8.0 |
| 2610 | * |
| 2611 | * @global WP_Scripts $wp_scripts |
| 2612 | * |
| 2613 | * @return array |
| 2614 | */ |
| 2615 | function wp_print_head_scripts() { |
| 2616 | if ( ! did_action( 'wp_print_scripts' ) ) { |
| 2617 | /** This action is documented in wp-includes/functions.wp-scripts.php */ |
| 2618 | do_action( 'wp_print_scripts' ); |
| 2619 | } |
| 2620 | |
| 2621 | global $wp_scripts; |
| 2622 | |
| 2623 | if ( ! ( $wp_scripts instanceof WP_Scripts ) ) { |
| 2624 | return array(); // no need to run if nothing is queued |
| 2625 | } |
| 2626 | return print_head_scripts(); |
| 2627 | } |