3v4l.org

run code in 300+ PHP versions simultaneously
<?php $input = ""; for ($t=0; $t<250; $t++) $input .= chr($t); for ($t=0; $t<strlen($input); $t++) { echo "ord = ".ord(substr($input, $t, 1)).", substr = ".substr($input, $t, 1)."\n"; } echo "strlen = ".strlen($input)."\n"; echo("t = $t \n");

preferences:
41.02 ms | 402 KiB | 5 Q