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| <?php | |
| /** | |
| * Pop PHP Framework (http://www.popphp.org/) | |
| * | |
| * @link https://github.com/popphp/popphp-framework | |
| * @author Nick Sagona, III <dev@nolainteractive.com> | |
| * @copyright Copyright (c) 2009-2017 NOLA Interactive, LLC. (http://www.nolainteractive.com) | |
| * @license http://www.popphp.org/license New BSD License | |
| */ | |
| /** | |
| * @namespace | |
| */ | |
| namespace Pop\Validator; | |
| /** | |
| * Credit card validator class | |
| * | |
| * @category Pop | |
| * @package Pop\Validator | |
| * @author Nick Sagona, III <dev@nolainteractive.com> | |
| * @copyright Copyright (c) 2009-2017 NOLA Interactive, LLC. (http://www.nolainteractive.com) | |
| * @license http://www.popphp.org/license New BSD License | |
| * @version 3.0.0 | |
| */ | |
| class CreditCard extends AbstractValidator | |
| { | |
| /** | |
| * Method to evaluate the validator | |
| * | |
| * @param mixed $input | |
| * @return boolean | |
| */ | |
| public function evaluate($input = null) | |
| { | |
| // Set the input, if passed | |
| if (null !== $input) { | |
| $this->input = $input; | |
| if (strpos($this->input, ' ') !== false) { | |
| $this->input = str_replace(' ', '', $this->input); | |
| } | |
| if (strpos($this->input, '-') !== false) { | |
| $this->input = str_replace('-', '', $this->input); | |
| } | |
| } | |
| // Set the default message | |
| if (null === $this->message) { | |
| $this->message = 'The value must be a valid credit card number.'; | |
| } | |
| // Evaluate the input against the validator | |
| $nums = str_split($this->input); | |
| $check = $nums[count($nums) - 1]; | |
| $start = count($nums) - 2; | |
| $sum = 0; | |
| $double = true; | |
| for ($i = $start; $i >= 0; $i--) { | |
| if ($double) { | |
| $num = $nums[$i] * 2; | |
| if ($num > 9) { | |
| $num = substr($num, 0, 1) + substr($num, 1, 1); | |
| } | |
| $sum += $num; | |
| $double = false; | |
| } else { | |
| $sum += $nums[$i]; | |
| $double = true; | |
| } | |
| } | |
| $sum += $check; | |
| $rem = $sum % 10; | |
| return ($rem == 0); | |
| } | |
| } |