怎么抓取网页实时内容

程序员文章站 2022-06-14 13:18:18

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如何抓取网页实时内容



#网址：http://data.shishicai.cn/cqssc/haoma/

#Demo：

/* Created on [2013-5-1] Author[Newton] Filename[action.php]*/

#编码转换

function convToUtf8($str) {

	if (mb_detect_encoding($str, "UTF-8, ISO-8859-1, GBK") != "UTF-8") {

		return iconv("GBK", "utf-8", $str);

	} else {

		return $str;

	}

}


header("content-type:text/html;charset:utf-8");

error_reporting(E_ERROR);

$pages = file_get_contents('http://data.shishicai.cn/cqssc/haoma/');

//$pages = htmlspecialchars($pages);

$pages = convToUtf8($pages);

echo "pages-->>".print_r($pages);echo PHP_EOL;

$doc = new DOMDocument();

$new_doc = new DOMDocument('1.0', 'utf-8');


echo "doc-->>".print_r($doc);echo PHP_EOL;

$dom = $doc->getElementsByTagName('table');


$newdoc = $new_doc->loadhtml($dom->item(2)->nodeValue);

$table = $new_doc->saveHTML();

echo "table-->>{$table}".PHP_EOL;


#result：

#……乱码……

#pages-->>1 DOMDocument Object ( ) doc-->>1 table-->>

#table是空的……

?>