DOM解析的PHP问题

时间:2010-10-11 12:13:56

标签: php http foreach domxpath

下面粘贴的代码可以在我的电脑上运行,但不能在我的主机上安装(安装了PHP 5.2.13)。

$source = file_get_contents('http://example.com/example', 0);
$dom = new DOMDocument;
@$dom->loadHTML($source);
$dom->preserveWhiteSpace = false;

$xpath = new DOMXPath($dom);
$tags = $xpath->query('//div[@class="item"]');

$xml = '<?xml version="1.0" encoding="UTF-8"?>' . "\r\n<root>\r\n";

foreach($tags as $tag)
    $xml .= "\t<tag>" . trim($tag->nodeValue) . "</tag>\r\n";

$xml .= '</root>';

$xml_file = 'tags.xml';
$fopen_handle = fopen($xml_file, 'w+');
fwrite($fopen_handle, $xml);
fclose($fopen_handle);

在我的托管上,foreach循环不会执行,即我只在XML中获得这个:

<?xml version="1.0" encoding="UTF-8"?>
<root>
</root>

提前致谢。

1 个答案:

答案 0 :(得分:0)

您的托管不支持file_get_contents(allow_url_fopen是设置iirc)

试试这个:

$ch = curl_init();
$timeout = 0;
curl_setopt ($ch, CURLOPT_URL, 'http://example.com');
curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt ($ch, CURLOPT_CONNECTTIMEOUT, $timeout);
$file_contents = curl_exec($ch);
curl_close($ch);