3v4l.org

run code in 300+ PHP versions simultaneously
<?php function brut36($A="0123456789", $N=1) { $base="0123456789abcdefghijklmnopqrstuvwxyz"; $b=strlen($A); $count=pow($b, $N); for ($i=0;$i<$count;$i++) echo strtr(str_pad(base_convert($i, 10, $b), $N, "0", STR_PAD_LEFT), $base, $A),"\r\n"; } brut36("LRUD", 5);

preferences:
45.02 ms | 402 KiB | 5 Q