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<?php |
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/** |
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* Particle. |
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* |
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* @link http://github.com/particle-php for the canonical source repository |
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* @copyright Copyright (c) 2005-2015 Particle (http://particle-php.com) |
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* @license https://github.com/particle-php/validator/blob/master/LICENSE New BSD License |
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*/ |
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namespace Particle\Validator\Rule; |
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use byrokrat\checkdigit\Luhn; |
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use Particle\Validator\Rule; |
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/** |
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* This rule is for validating if a value is a valid credit card number. |
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* |
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* @package Particle\Validator\Rule |
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*/ |
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class CreditCard extends Rule |
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{ |
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/** |
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* A constant that will be used when the value is not a valid credit card number. |
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*/ |
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const INVALID_FORMAT = 'CreditCard::INVALID_FORMAT'; |
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const INVALID_CHECKSUM = 'CreditCard::INVALID_CHECKSUM'; |
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/** |
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* Regular expressions to validate the different credit card brands |
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* |
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* @var array |
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*/ |
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protected $validationRegExps = [ |
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'/^4[0-9]{12}(?:[0-9]{3})?$/', // Visa |
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'/^5[1-5][0-9]{14}$/', // Mastercard |
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'/^3[47][0-9]{13}$/', // American Express |
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'/^3(?:0[0-5]|[68][0-9])[0-9]{11}$/', // Diners Club |
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'/^6(?:011|5[0-9]{2})[0-9]{12}$/', // Discover |
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'/^(?:2131|1800|35\d{3})\d{11}$/', // JCB |
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]; |
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/** |
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* The message templates which can be returned by this validator. |
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* |
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* @var array |
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*/ |
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protected $messageTemplates = [ |
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self::INVALID_FORMAT => '{{ name }} must have a valid credit card number format', |
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self::INVALID_CHECKSUM => '{{ name }} must be a valid credit card number', |
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]; |
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/** |
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* Validates if the value is a valid credit card number. |
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* |
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* @param mixed $value |
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* @return bool |
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*/ |
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public function validate($value) |
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{ |
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if (!$this->validateFormat($value)) { |
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return $this->error(self::INVALID_FORMAT); |
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} elseif (!$this->validateChecksum($value)) { |
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return $this->error(self::INVALID_CHECKSUM); |
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} |
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return true; |
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} |
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/** |
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* @param $value |
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* |
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* @return bool |
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*/ |
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private function validateChecksum($value) |
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{ |
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$luhn = new Luhn(); |
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return $luhn->isValid($value); |
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} |
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/** |
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* @param $value |
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* |
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* @return bool |
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*/ |
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private function validateFormat($value) |
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{ |
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foreach ($this->validationRegExps as $validationRegExp) { |
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if (preg_match($validationRegExp, $value) === 1) { |
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return true; |
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} |
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} |
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return false; |
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} |
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} |
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particle-php /
Validator
