Getting a sites Favicon with PHP.

[Wolfsoap]

Does anyone know how to get an external sites favicon with PHP?

I've googled it with no luck, thought someone might know.

[cahva]

Well its a file like anything else so just copy it to where you like:

$icon = file_get_contents('http://www.phpbuilder.com/favicon.ico');
file_put_contents('favicon_from_phpbuilder.ico',$icon);

Ofcourse the icon is not always with that name but you can find out by looking at the source and find link tag with rel attribute as shortcut:

<link rel="shortcut" href="/favicon.ico" type="image/x-icon" />

[NogDog]

/**
 * Get favicon link from a URL
 * @return mixed  Returns string if found, else boolean false
 * @param string  The url to search
 **/
function getFavicon($url)
{
   $href = false;
   $ch = curl_init($url);
   curl_setopt($ch, CURLOPT_HEADER, 0);
   curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
   $content = curl_exec($ch);
   if (!empty($content))
   {
      $dom = new DOMDocument();
      @$dom->loadHTML($content);
      $items = $dom->getElementsByTagName('link');
      foreach ($items as $item)
      {
         $rel = $item->getAttribute('rel');
         if ($rel == 'icon' or $rel == 'shortcut icon')
         {
            $href = $item->getAttribute('href');
            break;
         }
      }
   }
   return $href;
}

You would then have to parse the return value to determine whether it is a full URI or a relative path.