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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.
| Line | Code |
|---|---|
| 43 | if ( '' === $handles ) { // for wp_head |
| 44 | $handles = false; |
| 45 | } |
| 46 | /** |
| 47 | * Fires before styles in the $handles queue are printed. |
| 48 | * |
| 49 | * @since 2.6.0 |
| 50 | */ |
| 51 | if ( ! $handles ) { |
| 52 | do_action( 'wp_print_styles' ); |
| 53 | } |
| 54 | |
| 55 | _wp_scripts_maybe_doing_it_wrong( __FUNCTION__ ); |
| 56 | |
| 57 | global $wp_styles; |
| 58 | if ( ! ( $wp_styles instanceof WP_Styles ) ) { |
| 59 | if ( ! $handles ) { |
| 60 | return array(); // No need to instantiate if nothing is there. |
| 61 | } |