	public static function extendTimeLimit($time = null) {
		static $defLimit = null;
		if (is_null($defLimit)) {
			$defLimit = ini_get('max_execution_time');
		}
		if ($defLimit != 0) {
			$time = is_null($time)? $defLimit : max($defLimit, $time);
			set_time_limit($time);
		}
	}
The software constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component.