3v4l.org

run code in 300+ PHP versions simultaneously
<?php $s = '!¾a’z„  ]¹g¤FÉæ[øšwô'; $b = 'kaskkasdkaksd'; foreach (array($s, $b, '') as $i) var_dump(preg_match('/^[\\x00\\x08\\x0B\\x0C\\x0E-\\x1F]*$/', $i));
preferences:
52.34 ms | 402 KiB | 5 Q