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run code in 300+ PHP versions simultaneously
<?php function return_bytes($val) { $val = trim($val); $last = $val{strlen($val)-1}; switch($last) { case 'k': case 'K': return (int) $val * 1024; break; case 'm': case 'M': return (int) $val * 1048576; break; default: return $val; } } return_byte('8M') ?>

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29.87 ms | 402 KiB | 5 Q