3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str=mb_strtolower('İstanbul'); for ($i = 0; $i < strlen($str); $i++) echo $str[$i] . " => " . ord($str[$i]) . "\n";
Output for 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
i => 105 � => 204 � => 135 s => 115 t => 116 a => 97 n => 110 b => 98 u => 117 l => 108
preferences:
54.17 ms | 406 KiB | 5 Q