3v4l.org

run code in 300+ PHP versions simultaneously
<?php $argv[1]="uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuug uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu"; $s=substr_count;for($i=0;$c=explode(' ',$argv[1])[$i++];)echo chr($s($c,u)+2*$s($c,g));

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45.76 ms | 402 KiB | 5 Q