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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 |
|---|---|
| 812 | * @since 2.8.0 |
| 813 | * |
| 814 | * @see wp_print_scripts() |
| 815 | */ |
| 816 | function print_head_scripts() { |
| 817 | global $wp_scripts, $concatenate_scripts; |
| 818 | |
| 819 | if ( ! did_action('wp_print_scripts') ) { |
| 820 | /** This action is documented in wp-includes/functions.wp-scripts.php */ |
| 821 | do_action( 'wp_print_scripts' ); |
| 822 | } |
| 823 | |
| 824 | if ( ! ( $wp_scripts instanceof WP_Scripts ) ) { |
| 825 | $wp_scripts = new WP_Scripts(); |
| 826 | } |
| 827 | |
| 828 | script_concat_settings(); |
| 829 | $wp_scripts->do_concat = $concatenate_scripts; |
| 830 | $wp_scripts->do_head_items(); |
| Line | Code |
| 912 | * |
| 913 | * Postpones the scripts that were queued for the footer. |
| 914 | * wp_print_footer_scripts() is called in the footer to print these scripts. |
| 915 | * |
| 916 | * @since 2.8.0 |
| 917 | */ |
| 918 | function wp_print_head_scripts() { |
| 919 | if ( ! did_action('wp_print_scripts') ) { |
| 920 | /** This action is documented in wp-includes/functions.wp-scripts.php */ |
| 921 | do_action( 'wp_print_scripts' ); |
| 922 | } |
| 923 | |
| 924 | global $wp_scripts; |
| 925 | |
| 926 | if ( ! ( $wp_scripts instanceof WP_Scripts ) ) { |
| 927 | return array(); // no need to run if nothing is queued |
| 928 | } |
| 929 | return print_head_scripts(); |
| 930 | } |