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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 |
|---|---|
| 1267 | * @global bool $concatenate_scripts |
| 1268 | * |
| 1269 | * @return array |
| 1270 | */ |
| 1271 | function print_head_scripts() { |
| 1272 | global $concatenate_scripts; |
| 1273 | |
| 1274 | if ( ! did_action('wp_print_scripts') ) { |
| 1275 | /** This action is documented in wp-includes/functions.wp-scripts.php */ |
| 1276 | do_action( 'wp_print_scripts' ); |
| 1277 | } |
| 1278 | |
| 1279 | $wp_scripts = wp_scripts(); |
| 1280 | |
| 1281 | script_concat_settings(); |
| 1282 | $wp_scripts->do_concat = $concatenate_scripts; |
| 1283 | $wp_scripts->do_head_items(); |
| 1284 | |
| 1285 | /** |
| Line | Code |
| 1377 | * @since 2.8.0 |
| 1378 | * |
| 1379 | * @global WP_Scripts $wp_scripts |
| 1380 | * |
| 1381 | * @return array |
| 1382 | */ |
| 1383 | function wp_print_head_scripts() { |
| 1384 | if ( ! did_action('wp_print_scripts') ) { |
| 1385 | /** This action is documented in wp-includes/functions.wp-scripts.php */ |
| 1386 | do_action( 'wp_print_scripts' ); |
| 1387 | } |
| 1388 | |
| 1389 | global $wp_scripts; |
| 1390 | |
| 1391 | if ( ! ( $wp_scripts instanceof WP_Scripts ) ) { |
| 1392 | return array(); // no need to run if nothing is queued |
| 1393 | } |
| 1394 | return print_head_scripts(); |
| 1395 | } |