使用simplexml读取第一个值

$data = '<ACCOUNT NumCrds="1">
<ACCNO>some Bank</ACCNO>
<CURRCODE>CAD</CURRCODE>
<ACCTYPE>00</ACCTYPE>
</ACCOUNT>
';
$xml = new SimpleXMLElement($data);

// this outputs 1
echo $xml['NumCrds'];

$attributes = $xml->attributes();
echo $attributes['NumCrds'];

$attrs = $el->attributes(); echo $attrs['NumCrds']

echo $el['NumCrds']

$my_num_cards=$item->attributes()->NumCrds;