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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 |
|---|---|
| 2643 | ); |
| 2644 | |
| 2645 | /** |
| 2646 | * Filter the site icon meta tags, so Plugins can add their own. |
| 2647 | * |
| 2648 | * @since 4.3.0 |
| 2649 | * |
| 2650 | * @param array $meta_tags Site Icon meta elements. |
| 2651 | */ |
| 2652 | $meta_tags = apply_filters( 'site_icon_meta_tags', $meta_tags ); |
| 2653 | $meta_tags = array_filter( $meta_tags ); |
| 2654 | |
| 2655 | foreach ( $meta_tags as $meta_tag ) { |
| 2656 | echo "$meta_tag\n"; |
| 2657 | } |
| 2658 | } |
| 2659 | |
| 2660 | /** |
| 2661 | * Whether the user should have a WYSIWIG editor. |