通过php判断银行四要素

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

require_once('bankList.php');

functionbankInfo($card,$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);