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run code in 300+ PHP versions simultaneously
<?php $t = time(); $l = 10; foreach(array(2,8,10,16,24,32) as $base) echo str_pad($base, 2).' '.str_pad(base_convert($t, 10, $base), $l)."\n"; echo str_pad(64, 2).' '.str_pad(base64_encode($t), $l)."\n";

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33.61 ms | 402 KiB | 5 Q