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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 |
|---|---|
| 967 | $wp_styles->do_footer_items(); |
| 968 | |
| 969 | /** |
| 970 | * Filter whether to print the styles queued too late for the HTML head. |
| 971 | * |
| 972 | * @since 3.3.0 |
| 973 | * |
| 974 | * @param bool $print Whether to print the 'late' styles. Default true. |
| 975 | */ |
| 976 | if ( apply_filters( 'print_late_styles', true ) ) { |
| 977 | _print_styles(); |
| 978 | } |
| 979 | |
| 980 | $wp_styles->reset(); |
| 981 | return $wp_styles->done; |
| 982 | } |
| 983 | |
| 984 | /** |
| 985 | * @internal use |