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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 |
|---|---|
| 495 | } |
| 496 | |
| 497 | // Adds an 'x' link next to author URLs, clicking will remove the author URL and show an undo link |
| 498 | public static function remove_comment_author_url() { |
| 499 | if ( !empty( $_POST['id'] ) && check_admin_referer( 'comment_author_url_nonce' ) ) { |
| 500 | $comment_id = intval( $_POST['id'] ); |
| 501 | $comment = get_comment( $comment_id, ARRAY_A ); |
| 502 | if ( $comment && current_user_can( 'edit_comment', $comment['comment_ID'] ) ) { |
| 503 | $comment['comment_author_url'] = ''; |
| 504 | do_action( 'comment_remove_author_url' ); |
| 505 | print( wp_update_comment( $comment ) ); |
| 506 | die(); |
| 507 | } |
| 508 | } |
| 509 | } |
| 510 | |
| 511 | public static function add_comment_author_url() { |
| 512 | if ( !empty( $_POST['id'] ) && !empty( $_POST['url'] ) && check_admin_referer( 'comment_author_url_nonce' ) ) { |
| 513 | $comment_id = intval( $_POST['id'] ); |