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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 |
---|---|
2923 | } |
2924 |
|
2925 | /** |
2926 | * Filters the site icon meta tags, so plugins can add their own. |
2927 | * |
2928 | * @since 4.3.0 |
2929 | * |
2930 | * @param string[] $meta_tags Array of Site Icon meta tags. |
2931 | */ |
2932 | $meta_tags = apply_filters( 'site_icon_meta_tags', $meta_tags ); |
2933 | $meta_tags = array_filter( $meta_tags ); |
2934 |
|
2935 | foreach ( $meta_tags as $meta_tag ) { |
2936 | echo "$meta_tag\n"; |
2937 | } |
2938 | } |
2939 |
|
2940 | /** |
2941 | * Prints resource hints to browsers for pre-fetching, pre-rendering |