$item) : if (filter_var($position, FILTER_VALIDATE_INT)!==false && filter_var($item, FILTER_VALIDATE_INT)!==false): $iterSql = "UPDATE $wpdb->users SET knr_author_order = $position WHERE ID = $item"; $wpdb->query($iterSql); else: echo '

Invalid data. '."position: $position, item: $item".'

'; endif; endforeach; echo 'Saved on '.date('r'); ?>