php擷取xml屬性值

<!-- xml格式<br /><foo xmlns="test"><br /><bar attr='a'></bar><br /><bar attr='b'></bar><br /><bar attr='c'></bar><br /></foo><br />--><br /> <?php<br />$dom = new DOMDocument();<br />if (!$dom->load('attr.xml'))<br />{<br />echo "load books.xml failed!<br>";<br />return;<br />}</p><p>$foos = $dom->getElementsByTagName('foo');<br />$var = $foos->item(0)->getAttribute('xmlns');<br />echo 'var=' . $var . '<br>';<br />/*foreach ($foos as $foo)<br />{<br />$var = $foo->getAttribute('xmlns');<br />echo 'var=' . $var . '<br>';<br />}*/<br />$bars = $dom->getElementsByTagName('bar');</p><p>foreach ($bars as $bar)<br />{<br />$arr[] = $bar->getAttribute('attr');<br />}</p><p>var_dump($arr);<br /> ?></p><p>