Bestimmen Sie den Besitz der Bankkartennummer

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]; 
    zurück; 
  } 
  $card_6 = substr($card, 0, 6); 
  if (isset($bankList[$card_6])) { 
    echo $bankList[$card_6]; 
    zurück; 
  } 
  $card_5 = ​​substr($card, 0, 5); 
  if (isset($bankList[$card_5])) { 
    echo $bankList[$card_5]; 
    zurück; 
  } 
  $card_4 = substr($card, 0, 4); 
  if (isset($bankList[$card_4])) { 
    echo $bankList[$card_4]; 
    zurück; 
  } 
  echo '该卡号信息暂未录入'; 
} 
  

echo bankInfo('6228481552887309119',$bankList);

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