3v4l.org

run code in 300+ PHP versions simultaneously
<?php $tpl = "AR42-8LNA-%sEQ3"; $char = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ"; $length = strlen($char)-1; for($i=0; i<=$length; $i++) { printf($tpl, substr($char, $i, 1)); echo PHP_EOL; }

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38.73 ms | 402 KiB | 5 Q