WP hooks navigation: Home/browse • Actions index • Filters index
To save our bandwidth, we show only a snippet of code around each occurence of the hook. View complete file in SVN (without highlighting).
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 |
---|---|
2817 | foreach ( $hints as $relation_type => $urls ) { |
2818 | /** |
2819 | * Filters domains and URLs for resource hints of relation type. |
2820 | * |
2821 | * @since 4.6.0 |
2822 | * |
2823 | * @param array $urls URLs to print for resource hints. |
2824 | * @param string $relation_type The relation type the URLs are printed for, e.g. 'preconnect' or 'prerender'. |
2825 | */ |
2826 | $urls = apply_filters( 'wp_resource_hints', $urls, $relation_type ); |
2827 |
|
2828 | foreach ( $urls as $key => $url ) { |
2829 | $url = esc_url( $url, array( 'http', 'https' ) ); |
2830 | if ( ! $url ) { |
2831 | unset( $urls[ $key ] ); |
2832 | continue; |
2833 | } |
2834 |
|
2835 | if ( in_array( $relation_type, array( 'preconnect', 'dns-prefetch' ) ) ) { |