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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 |
---|---|
2456 | ); |
2457 |
|
2458 | /** |
2459 | * Filter the site icon meta tags, so Plugins can add their own. |
2460 | * |
2461 | * @since 4.3.0 |
2462 | * |
2463 | * @param array $meta_tags Site Icon meta elements. |
2464 | */ |
2465 | $meta_tags = apply_filters( 'site_icon_meta_tags', $meta_tags ); |
2466 | $meta_tags = array_filter( $meta_tags ); |
2467 |
|
2468 | foreach ( $meta_tags as $meta_tag ) { |
2469 | echo "$meta_tag\n"; |
2470 | } |
2471 | } |
2472 |
|
2473 | /** |
2474 | * Whether the user should have a WYSIWIG editor. |