本判断需要依靠一个银行信息的记录,内容如下
bankList 下载下载Bank_list
[code type=php]
$bankList = [
‘621098’ => ‘邮储银行-绿卡通-借记卡’,
‘622150’ => ‘邮储银行-绿卡银联标准卡-借记卡’,
‘622151’ => ‘邮储银行-绿卡银联标准卡-借记卡’,
……
];

$card_8 = substr($card, 0, 8);
if (isset($bankList[$card_8])) {
return $bankList[$card_8];
}
$card_6 = substr($card, 0, 6);
if (isset($bankList[$card_6])) {
return $bankList[$card_6];
}
$card_5 = substr($card, 0, 5);
if (isset($bankList[$card_5])) {
return $bankList[$card_5];
}
$card_4 = substr($card, 0, 4);
if (isset($bankList[$card_4])) {
return $bankList[$card_4];
}[/code]