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run code in 300+ PHP versions simultaneously
<?php foreach (explode(', ', '1, 4, 9, 16, 25, 36, 49, 64, 81, 100, 121, 144, 169, 196, 225') as $num) { settype($num, 'integer'); echo decbin($num)."\n"; }
Output for git.master, git.master_jit, rfc.property-hooks
1 100 1001 10000 11001 100100 110001 1000000 1010001 1100100 1111001 10010000 10101001 11000100 11100001

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