/** * Wrapper for t3lib_div::testInt and \TYPO3\CMS\Core\Utility\MathUtility::canBeInterpretedAsInteger($var) * @param mixed $var * @return boolean * @deprecated use tx_rnbase_util_Math::isInteger */ public static function isInteger($var) { return Tx_Rnbase_Utility_Strings::isInteger($var); }