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@@ -601,4 +601,21 @@ EOF';
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return sprintf("%0.5f", abs($aTime - $bTime) / 100000);
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}
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+ public static function isNip($nip) {
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+ if (!(is_numeric($nip) && preg_match('/^[[:digit:]]{10}$/', $nip))) return false;
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+ $waga = [6, 5, 7, 2, 3, 4, 5, 6, 7];
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+ $c = 0;
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+ for ($i = 0; $i < 9; $i++) $c += $nip[$i] * $waga[$i];
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+ $c = ($c % 11) % 10;
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+ return ($nip[9] == $c);
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+ }
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+
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+ public static function isRegon($regon) {
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+ if (!(is_numeric($regon) && preg_match('/^[[:digit:]]{9}$/', $regon))) return false;
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+ $waga = [8, 9, 2, 3, 4, 5, 6, 7];
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+ $c = 0;
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+ for ($i = 0; $i < 8; $i++) $c += $regon[$i] * $waga[$i];
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+ $c = ($c % 11) % 10;
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+ return ($regon[8] == $c);
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+ }
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}
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