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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 |
|---|---|
| 2063 | * @global bool $concatenate_scripts |
| 2064 | * |
| 2065 | * @return array |
| 2066 | */ |
| 2067 | function print_head_scripts() { |
| 2068 | global $concatenate_scripts; |
| 2069 | |
| 2070 | if ( ! did_action('wp_print_scripts') ) { |
| 2071 | /** This action is documented in wp-includes/functions.wp-scripts.php */ |
| 2072 | do_action( 'wp_print_scripts' ); |
| 2073 | } |
| 2074 | |
| 2075 | $wp_scripts = wp_scripts(); |
| 2076 | |
| 2077 | script_concat_settings(); |
| 2078 | $wp_scripts->do_concat = $concatenate_scripts; |
| 2079 | $wp_scripts->do_head_items(); |
| 2080 | |
| 2081 | /** |
| Line | Code |
| 2173 | * @since 2.8.0 |
| 2174 | * |
| 2175 | * @global WP_Scripts $wp_scripts |
| 2176 | * |
| 2177 | * @return array |
| 2178 | */ |
| 2179 | function wp_print_head_scripts() { |
| 2180 | if ( ! did_action('wp_print_scripts') ) { |
| 2181 | /** This action is documented in wp-includes/functions.wp-scripts.php */ |
| 2182 | do_action( 'wp_print_scripts' ); |
| 2183 | } |
| 2184 | |
| 2185 | global $wp_scripts; |
| 2186 | |
| 2187 | if ( ! ( $wp_scripts instanceof WP_Scripts ) ) { |
| 2188 | return array(); // no need to run if nothing is queued |
| 2189 | } |
| 2190 | return print_head_scripts(); |
| 2191 | } |