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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 |
---|---|
3278 | } |
3279 |
|
3280 | /** |
3281 | * Filters the site icon meta tags, so plugins can add their own. |
3282 | * |
3283 | * @since 4.3.0 |
3284 | * |
3285 | * @param string[] $meta_tags Array of Site Icon meta tags. |
3286 | */ |
3287 | $meta_tags = apply_filters( 'site_icon_meta_tags', $meta_tags ); |
3288 | $meta_tags = array_filter( $meta_tags ); |
3289 |
|
3290 | foreach ( $meta_tags as $meta_tag ) { |
3291 | echo "$meta_tag\n"; |
3292 | } |
3293 | } |
3294 |
|
3295 | /** |
3296 | * Prints resource hints to browsers for pre-fetching, pre-rendering |