3v4l.org

run code in 300+ PHP versions simultaneously
<?php $input = ""; for ($t=0; $t<1000; $t++) $input .= chr($t); for ($t=0; $t<strlen($input); $t++) echo "".ord(substr($input, $t, 1))." ";

preferences:
76.24 ms | 402 KiB | 5 Q