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我有這個網站：XPath的問題HTML解析
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<strong>Foldr ID</strong><br />82dca8a8506023bfc4ac08938 </div>
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<h2 style="text-align:center;">Wählen Sie ihren bevorzugten Mirror.</h2> <table style="margin-left:auto; margin-right:auto;" cellspacing="0" cellpadding="0">
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我的XPath查詢是這樣的：/html/body/div[3]/div[2]/center/table/tbody/tr[1]/td[1]/div/a/@href我用這個PHP代碼解析它。但它打印出NULL不是我想要的鏈接。我的錯誤在哪裏？
$DOM = new DOMDocument;
libxml_use_internal_errors(true);
$DOM->loadHTML($fold); //$fold is the html document.
$xpath = new DOMXpath($DOM);
$items = $xpath->query("/html/body/div[3]/div[2]/center/table/tbody/tr[1]/td[1]/div/a/@href");
echo $items->item(0)->nodeValue;