Online PHP editor | vld for vAqHj

<?php $counter = 0; while (true) { $counter++; if(($counter % 17) === 0) { $counterStr = "$counter"; $digSum = 0; for($i = 0; $i < strlen($counterStr); $i++) { $digSum = $digSum + (int) $counterStr[$i]; } if($digSum === 17 && $counterStr[strlen($counterStr) - 2] === "1" && $counterStr[strlen($counterStr) - 1] == "7" && $counter !== 917) { var_dump($counter); break; } } }