wp_delete_comment() │ WP 2.0.0

Deletes or trashes a comment by the specified ID.

If the trash is disabled, the comment will be permanently deleted, the second parameter ($force_delete) becomes unnecessary.

Uses wp_trash_comment() if the trash is enabled and the second parameter is not true.

Hooks from the function

Returns

true|false. true - on successful deletion and false - failed to delete.

Usage

wp_delete_comment( $comment_id, $force_delete );
$comment_id(integer) (required)
ID of the comment to be deleted.
$force_delete(boolean)
Force deletion. If you need to delete the comment without sending it to the trash, set to true.
Default: false

Examples

0

#1 Deleting a comment in WordPress

Delete comment 457 and display the message "comment 457 deleted!" if successful:

$id = 457;
$done = wp_delete_comment( $id, true ); // skip trash

if( $done ){
	echo "Comment {$id} deleted!";
}
0

#2 Move the comment to the trash (but not delete it completely)

Put comment 457 in the trash (assuming the trash is enabled):

$id = 457;
$done = wp_delete_comment( $id );

if( $done ){
	echo "Comment {$id} placed in cart!";
}

Notes

  • Global. wpdb. $wpdb WordPress database abstraction object.

Changelog

Since 2.0.0 Introduced.

wp_delete_comment() code WP 6.8.3

wp-includes/comment.php 
function wp_delete_comment( $comment_id, $force_delete = false ) {
	global $wpdb;

	$comment = get_comment( $comment_id );
	if ( ! $comment ) {
		return false;
	}

	if ( ! $force_delete && EMPTY_TRASH_DAYS && ! in_array( wp_get_comment_status( $comment ), array( 'trash', 'spam' ), true ) ) {
		return wp_trash_comment( $comment_id );
	}

	/**
	 * Fires immediately before a comment is deleted from the database.
	 *
	 * @since 1.2.0
	 * @since 4.9.0 Added the `$comment` parameter.
	 *
	 * @param string     $comment_id The comment ID as a numeric string.
	 * @param WP_Comment $comment    The comment to be deleted.
	 */
	do_action( 'delete_comment', $comment->comment_ID, $comment );

	// Move children up a level.
	$children = $wpdb->get_col( $wpdb->prepare( "SELECT comment_ID FROM $wpdb->comments WHERE comment_parent = %d", $comment->comment_ID ) );
	if ( ! empty( $children ) ) {
		$wpdb->update( $wpdb->comments, array( 'comment_parent' => $comment->comment_parent ), array( 'comment_parent' => $comment->comment_ID ) );
		clean_comment_cache( $children );
	}

	// Delete metadata.
	$meta_ids = $wpdb->get_col( $wpdb->prepare( "SELECT meta_id FROM $wpdb->commentmeta WHERE comment_id = %d", $comment->comment_ID ) );
	foreach ( $meta_ids as $mid ) {
		delete_metadata_by_mid( 'comment', $mid );
	}

	if ( ! $wpdb->delete( $wpdb->comments, array( 'comment_ID' => $comment->comment_ID ) ) ) {
		return false;
	}

	/**
	 * Fires immediately after a comment is deleted from the database.
	 *
	 * @since 2.9.0
	 * @since 4.9.0 Added the `$comment` parameter.
	 *
	 * @param string     $comment_id The comment ID as a numeric string.
	 * @param WP_Comment $comment    The deleted comment.
	 */
	do_action( 'deleted_comment', $comment->comment_ID, $comment );

	$post_id = $comment->comment_post_ID;
	if ( $post_id && '1' === $comment->comment_approved ) {
		wp_update_comment_count( $post_id );
	}

	clean_comment_cache( $comment->comment_ID );

	/** This action is documented in wp-includes/comment.php */
	do_action( 'wp_set_comment_status', $comment->comment_ID, 'delete' );

	wp_transition_comment_status( 'delete', $comment->comment_approved, $comment );

	return true;
}

Comments