Deletes everything from post meta matching the given meta key.

$post_meta_key string Required

Key to search for when deleting.

bool Whether the post meta key was deleted from the database.

File: wp-includes/post.php. View all references

function delete_post_meta_by_key( $post_meta_key ) {
	return delete_metadata( 'post', null, $post_meta_key, '', true );
}