PHP----银行卡号信息

header('Content-type:text/html;charset=utf-8');

//处理银行卡号信息
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';
}

//Test
echo bankInfo('621098', $bankList);
//邮储银行-绿卡通-借记卡