PHP implementation based on bank card number judgment Bank _php tutorial

PHP implementation according to the bank card number judgment Bank

company business needs to use the bank card number to inquire about the bank card information, such as attribution to the bank, the type of card, etc., carefully studied, share to everyone

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header('Content-type:text/html;charset=utf-8'); require_once('bankList.php'); function bankInfo($card,$bankList) { $card_8 = substr($card, 0, 8); if (isset($bankList[$card_8])) { echo $bankList[$card_8]; return; } $card_6 = substr($card, 0, 6); if (isset($bankList[$card_6])) { echo $bankList[$card_6]; return; } $card_5 = substr($card, 0, 5); if (isset($bankList[$card_5])) { echo $bankList[$card_5]; return; } $card_4 = substr($card, 0, 4); if (isset($bankList[$card_4])) { echo $bankList[$card_4]; return; } echo '该卡号信息暂未录入'; } bankInfo('6228481552887309119',$bankList);

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