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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 |
---|---|
840 | function print_late_styles() { |
841 | global $wp_styles, $concatenate_scripts; |
842 |
|
843 | if ( !is_a($wp_styles, 'WP_Styles') ) |
844 | return; |
845 |
|
846 | $wp_styles->do_concat = $concatenate_scripts; |
847 | $wp_styles->do_footer_items(); |
848 |
|
849 | if ( apply_filters('print_late_styles', true) ) |
850 | _print_styles(); |
851 |
|
852 | $wp_styles->reset(); |
853 | return $wp_styles->done; |
854 | } |
855 |
|
856 | /** |
857 | * @internal use |
858 | */ |