本文实例讲述了PHP实现用于验证所有类型的信用卡类。分享给大家供大家参考。具体如下：
这个PHP类比较完整，可以用于验证各种不同的信用卡，针对信用卡的卡号的通用规则进行了验证，同时对不同类型的信用卡进行了针对性的识别。 代码接受一个信用卡号码和有效日期，如果两者都有效，则返回TRUE,否则返回FALSE。
本插件接受以下参数： $number 表示信用卡号码的一个字符串 $expiry 信用卡有效日期，采用07/12或0712这样的格式
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// Plug-in 32: Validate Credit Card
// This is an executable example with additional code supplied
// To obtain just the plug-ins please click on the Download link
$card = "4567 1234 5678 9101";
$exp = "06/11";
echo "Validating: $card : $exp
"; $result = PIPHP_ValidateCC($card,$exp); if ($result != FALSE) echo "Card Validated"; else echo "Card did not validate"; function PIPHP_ValidateCC($number,$expiry) { // Plug-in 32: Validate Credit Card // // This plug-in accepts a credit card number and // an expiry date and returns TRUE or FALSE,// depending on whether the details pass date // and checksum validation. The arguments required // are: // // $number: Credit Card Number // $expiry: Expiry date in the form: // 07/12 or 0712 (for July,2012) $number = preg_replace('/[^\d]/','',$number); $expiry = preg_replace('/[^\d]/',$expiry); $left = substr($number,4); $cclen = strlen($number); $chksum = 0; // Diners Club if (($left >= 3000) && ($left <= 3059) || ($left >= 3600) && ($left <= 3699) || ($left >= 3800) && ($left <= 3889)) if ($cclen != 14) return FALSE; // JCB if (($left >= 3088) && ($left <= 3094) || ($left >= 3096) && ($left <= 3102) || ($left >= 3112) && ($left <= 3120) || ($left >= 3158) && ($left <= 3159) || ($left >= 3337) && ($left <= 3349) || ($left >= 3528) && ($left <= 3589)) if ($cclen != 16) return FALSE; // American Express elseif (($left >= 3400) && ($left <= 3499) || ($left >= 3700) && ($left <= 3799)) if ($cclen != 15) return FALSE; // Carte Blanche elseif (($left >= 3890) && ($left <= 3899)) if ($cclen != 14) return FALSE; // Visa elseif (($left >= 4000) && ($left <= 4999)) if ($cclen != 13 && $cclen != 16) return FALSE; // MasterCard elseif (($left >= 5100) && ($left <= 5599)) if ($cclen != 16) return FALSE; // Australian BankCard elseif ($left == 5610) if ($cclen != 16) return FALSE; // Discover elseif ($left == 6011) if ($cclen != 16) return FALSE; // Unknown else return FALSE; for ($j = 1 - ($cclen % 2); $j < $cclen; $j += 2) $chksum += substr($number,$j,1); for ($j = $cclen % 2; $j < $cclen; $j += 2) { $d = substr($number,1) * 2; $chksum += $d < 10 ? $d : $d - 9; } if ($chksum % 10 != 0) return FALSE; if (mktime(0,substr($expiry,2),date("t"),2,2)) < time()) return FALSE; return TRUE; } ?>
"; $result = PIPHP_ValidateCC($card,$exp); if ($result != FALSE) echo "Card Validated"; else echo "Card did not validate"; function PIPHP_ValidateCC($number,$expiry) { // Plug-in 32: Validate Credit Card // // This plug-in accepts a credit card number and // an expiry date and returns TRUE or FALSE,// depending on whether the details pass date // and checksum validation. The arguments required // are: // // $number: Credit Card Number // $expiry: Expiry date in the form: // 07/12 or 0712 (for July,2012) $number = preg_replace('/[^\d]/','',$number); $expiry = preg_replace('/[^\d]/',$expiry); $left = substr($number,4); $cclen = strlen($number); $chksum = 0; // Diners Club if (($left >= 3000) && ($left <= 3059) || ($left >= 3600) && ($left <= 3699) || ($left >= 3800) && ($left <= 3889)) if ($cclen != 14) return FALSE; // JCB if (($left >= 3088) && ($left <= 3094) || ($left >= 3096) && ($left <= 3102) || ($left >= 3112) && ($left <= 3120) || ($left >= 3158) && ($left <= 3159) || ($left >= 3337) && ($left <= 3349) || ($left >= 3528) && ($left <= 3589)) if ($cclen != 16) return FALSE; // American Express elseif (($left >= 3400) && ($left <= 3499) || ($left >= 3700) && ($left <= 3799)) if ($cclen != 15) return FALSE; // Carte Blanche elseif (($left >= 3890) && ($left <= 3899)) if ($cclen != 14) return FALSE; // Visa elseif (($left >= 4000) && ($left <= 4999)) if ($cclen != 13 && $cclen != 16) return FALSE; // MasterCard elseif (($left >= 5100) && ($left <= 5599)) if ($cclen != 16) return FALSE; // Australian BankCard elseif ($left == 5610) if ($cclen != 16) return FALSE; // Discover elseif ($left == 6011) if ($cclen != 16) return FALSE; // Unknown else return FALSE; for ($j = 1 - ($cclen % 2); $j < $cclen; $j += 2) $chksum += substr($number,$j,1); for ($j = $cclen % 2; $j < $cclen; $j += 2) { $d = substr($number,1) * 2; $chksum += $d < 10 ? $d : $d - 9; } if ($chksum % 10 != 0) return FALSE; if (mktime(0,substr($expiry,2),date("t"),2,2)) < time()) return FALSE; return TRUE; } ?>
希望本文所述对大家的PHP程序设计有所帮助。
