查找页面上的所有链接

Posted 2021-02-26

The basis to a spider.

$html = file_get_contents('http://www.example.com');
 
$dom = new DOMDocument();
@$dom->loadHTML($html);
 
// grab all the on the page
$xpath = new DOMXPath($dom);
$hrefs = $xpath->evaluate("/html/body//a");
 
 
 
for ($i = 0; $i < $hrefs->length; $i++) {
	$href = $hrefs->item($i);
	$url = $href->getAttribute('href');
 
	echo $url.'<br />';
}