The Card Number Validation hole will go live in . Why not try and solve it ahead of time?

beastedge

865
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865
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1 / 108 Holes

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2 / 58 Langs

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5 / 75 Cheevos

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Quine in PHP in Chars Play Hole

40th in PHP and 2,880th overall.

Last tested .

Bytes Chars Submitted
50 50