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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 |
|---|---|
| 2100 | * @global bool $concatenate_scripts |
| 2101 | * |
| 2102 | * @return string[] Handles of the scripts that were printed. |
| 2103 | */ |
| 2104 | function print_head_scripts() { |
| 2105 | global $concatenate_scripts; |
| 2106 | |
| 2107 | if ( ! did_action( 'wp_print_scripts' ) ) { |
| 2108 | /** This action is documented in wp-includes/functions.wp-scripts.php */ |
| 2109 | do_action( 'wp_print_scripts' ); |
| 2110 | } |
| 2111 | |
| 2112 | $wp_scripts = wp_scripts(); |
| 2113 | |
| 2114 | script_concat_settings(); |
| 2115 | $wp_scripts->do_concat = $concatenate_scripts; |
| 2116 | $wp_scripts->do_head_items(); |
| 2117 | |
| 2118 | /** |
| Line | Code |
| 2220 | * @global WP_Scripts $wp_scripts |
| 2221 | * |
| 2222 | * @return string[] Handles of the scripts that were printed. |
| 2223 | */ |
| 2224 | function wp_print_head_scripts() { |
| 2225 | global $wp_scripts; |
| 2226 | |
| 2227 | if ( ! did_action( 'wp_print_scripts' ) ) { |
| 2228 | /** This action is documented in wp-includes/functions.wp-scripts.php */ |
| 2229 | do_action( 'wp_print_scripts' ); |
| 2230 | } |
| 2231 | |
| 2232 | if ( ! ( $wp_scripts instanceof WP_Scripts ) ) { |
| 2233 | return array(); // No need to run if nothing is queued. |
| 2234 | } |
| 2235 | |
| 2236 | return print_head_scripts(); |
| 2237 | } |
| 2238 | |