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<?php $tax = bcmul("33.95", ".065", 3); // 2.20675 $real_total = bcadd("33.95", "7.87", 3); // 41.82 $real_total = bcadd($real_total, $tax, 3); // 44.02675 echo mask("4111 1111 1111 1111", 0, -4); function bcround($number, $scale = 0) { $fix = "5"; for ($i=0; $i<$scale; $i++) $fix = "0$fix"; $number = bcadd($number, "0.$fix", $scale + 1); return bcdiv($number, "1.0", $scale); } function mask($string, $start = 0, $length = false) { $mask = preg_replace('/([\w])+/', '*', $string); if (!$length) { $mask = substr($mask, $start); $string = substr_replace($string, $mask, $start); } else { $mask = substr($mask, $start, $length); $string = substr_replace($string, $mask, $start, $length); } return $string; }

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46.67 ms | 402 KiB | 5 Q