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<?php |
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namespace IsoCodes; |
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/** |
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* Class VisNA, validating VIN numbers in North America. |
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* |
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* A vehicle identification number (VIN) (also called a chassis number or frame number) is a unique code, |
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* including a serial number, used by the automotive industry to identify |
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* individual motor vehicles, towed vehicles, motorcycles, scooters and mopeds, |
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* as defined in ISO 3779 (content and structure) and ISO 4030 (location and attachment). |
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* |
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* @source https://en.wikipedia.org/wiki/Vehicle_identification_number#North_American_check_digits |
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*/ |
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class VinNA implements IsoCodeInterface |
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{ |
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/** |
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* VIN validation. |
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* |
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* @param mixed $vin |
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* |
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* @return bool |
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*/ |
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public static function validate($vin) |
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{ |
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$vin = strtolower($vin); |
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if (!preg_match('/^[^\Wioq]{17}$/', $vin)) { |
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return false; |
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} |
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$weights = [8, 7, 6, 5, 4, 3, 2, 10, 0, 9, 8, 7, 6, 5, 4, 3, 2]; |
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$letterVal = [ |
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'a' => 1, 'b' => 2, 'c' => 3, 'd' => 4, |
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'e' => 5, 'f' => 6, 'g' => 7, 'h' => 8, |
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'j' => 1, 'k' => 2, 'l' => 3, 'm' => 4, |
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'n' => 5, 'p' => 7, 'r' => 9, 's' => 2, |
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't' => 3, 'u' => 4, 'v' => 5, 'w' => 6, |
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'x' => 7, 'y' => 8, 'z' => 9, |
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]; |
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$sum = 0; |
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for ($i = 0; $i < strlen($vin); ++$i) { |
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if (!is_numeric($vin[$i])) { |
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$sum += $letterVal[$vin[$i]] * $weights[$i]; |
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} else { |
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$sum += $vin[$i] * $weights[$i]; |
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} |
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} |
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$check = $sum % 11; |
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if (10 == $check) { |
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$check = 'x'; |
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} |
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return $check == $vin[8]; |
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} |
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} |
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ronanguilloux /
IsoCodes
