使用PHP查找网站上的所有CSS文件

Question

As the title suggest i am trying to find all CSS files on a website (for later use i will find all image urls in each of the CSS files on the server).

Now ive tried the following:

    $url_to_test = $_GET['url'];
$file = file_get_contents($url_to_test);
$doc = new DOMDocument();
$doc->loadHTML($file);
$domcss = $doc->getElementsByTagName('css');

However the array domcss turned out empty (for a site i know has alot of css files).

So my question is how do i find all css files loaded on a given page?

Answer 1

you should check for link not css, change:

$domcss = $doc->getElementsByTagName('css');

to

$domcss = $doc->getElementsByTagName('link');
foreach($domcss as $links) {
    if( strtolower($links->getAttribute('rel')) == "stylesheet" ) {
       echo "This is:". $links->getAttribute('href') ."<br />";
    }
}