Correctly Show Detect Credit Card Type In Php

Correctly Detect Credit Card Type Php.In this article I will show you how you correctly detect credit card type in you php function. Almost all credit cards can be validating using their regular expression. Following is the simple php function using that function in your site code you can easily detect the CC type.

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function getCreditCardType($str, $format = 'string')     {         if (empty($str)) {             return false;         }         $matchingPatterns = [             'visa' => '/^4[0-9]{12}(?:[0-9]{3})?$/',             'mastercard' => '/^5[1-5][0-9]{14}$/',             'amex' => '/^3[47][0-9]{13}$/',             'diners' => '/^3(?:0[0-5]|[68][0-9])[0-9]{11}$/',             'discover' => '/^6(?:011|5[0-9]{2})[0-9]{12}$/',             'jcb' => '/^(?:2131|1800|35\d{3})\d{11}$/',             'any' => '/^(?:4[0-9]{12}(?:[0-9]{3})?|5[1-5][0-9]{14} |6(?:011|5[0-9][0-9])[0-9]{12}|3[47][0-9]{13}|3(?:0[0-5]| [68][0-9])[0-9]{11}|(?:2131|1800|35\d{3})\d{11})$/'         ];         $ctr = 1;         foreach ($matchingPatterns as $key=>$pattern) {             if (preg_match($pattern, $str)) {                 return $format == 'string' ? $key : $ctr;             }             $ctr++;         }     }