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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 |
|---|---|
| 2367 | * @global bool $concatenate_scripts |
| 2368 | * |
| 2369 | * @return array |
| 2370 | */ |
| 2371 | function print_head_scripts() { |
| 2372 | global $concatenate_scripts; |
| 2373 | |
| 2374 | if ( ! did_action( 'wp_print_scripts' ) ) { |
| 2375 | /** This action is documented in wp-includes/functions.wp-scripts.php */ |
| 2376 | do_action( 'wp_print_scripts' ); |
| 2377 | } |
| 2378 | |
| 2379 | $wp_scripts = wp_scripts(); |
| 2380 | |
| 2381 | script_concat_settings(); |
| 2382 | $wp_scripts->do_concat = $concatenate_scripts; |
| 2383 | $wp_scripts->do_head_items(); |
| 2384 | |
| 2385 | /** |
| Line | Code |
| 2479 | * @since 2.8.0 |
| 2480 | * |
| 2481 | * @global WP_Scripts $wp_scripts |
| 2482 | * |
| 2483 | * @return array |
| 2484 | */ |
| 2485 | function wp_print_head_scripts() { |
| 2486 | if ( ! did_action( 'wp_print_scripts' ) ) { |
| 2487 | /** This action is documented in wp-includes/functions.wp-scripts.php */ |
| 2488 | do_action( 'wp_print_scripts' ); |
| 2489 | } |
| 2490 | |
| 2491 | global $wp_scripts; |
| 2492 | |
| 2493 | if ( ! ( $wp_scripts instanceof WP_Scripts ) ) { |
| 2494 | return array(); // no need to run if nothing is queued |
| 2495 | } |
| 2496 | return print_head_scripts(); |
| 2497 | } |