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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 |
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849 | $pung = apply_filters('get_enclosed', $pung); |
850 | return $pung; |
851 | } |
852 |
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853 | function get_pung($post_id) { // Get URLs already pung for a post |
854 | global $wpdb; |
855 | $pung = $wpdb->get_var("SELECT pinged FROM $wpdb->posts WHERE ID = $post_id"); |
856 | $pung = trim($pung); |
857 | $pung = preg_split('/\s/', $pung); |
858 | $pung = apply_filters('get_pung', $pung); |
859 | return $pung; |
860 | } |
861 |
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862 | function get_to_ping($post_id) { // Get any URLs in the todo list |
863 | global $wpdb; |
864 | $to_ping = $wpdb->get_var("SELECT to_ping FROM $wpdb->posts WHERE ID = $post_id"); |
865 | $to_ping = trim($to_ping); |
866 | $to_ping = preg_split('/\s/', $to_ping, -1, PREG_SPLIT_NO_EMPTY); |
867 | $to_ping = apply_filters('get_to_ping', $to_ping); |