3v4l.org

run code in 300+ PHP versions simultaneously
<?php $input = ""; for ($t=0; $t<100; $t++) $input .= chr($t); for ($t=0; $t<strlen($input); $t++) echo "[".ord(substr($input, $t, 1))."] ";

preferences:
33.75 ms | 402 KiB | 5 Q