PHPize Online / SQLize Online  /  SQLtest Online

<?php class Solution { /** * @param Integer[] $nums * @param Integer $target * @return Integer */ /** * @param String $start * @param String $end * @return Boolean */ static function canTransform($start, $end) { if (strlen($start) % 2 !== 0 || strlen($end) % 2 !== 0 || strlen($start) !== strlen($end)) { return false; } $iterationsNumber = strlen($start) / 2; var_dump($iterationsNumber); for ($i = 0; $i <= $iterationsNumber; $i += 2) { var_dump(substr($start, $i, 2)); var_dump(strrev(substr($start, $i, 2))); var_dump(substr($end, $i, 2)); if (strrev(substr($start, $i, 2)) !== substr($end, $i, 2)) return false; } return true; } } var_dump(Solution::canTransform('RXXLRXRXL', 'XRLXXRRLX'));