Get favicon V1

get_favicon.php

<?php 
// REGEX LIST
// $success = preg_match('/\<link.*href=\"(.*)\" \/\>/is', $str, $matches);
// $success = preg_match('/\<link.*href=\"(.*)\" \/\>/is', $text, $matches);

echo "<h2>Find RSS Feed URLs</h2>";

//$url = "https://mrmondialisation.org";
$url = "http://stackoverflow.com/";
$favicon = iconprovider($url);
echo $favicon;

function iconprovider($url) { // Find RSS feed in a web page url - a litle bit slower

    $icons = "";
    
    //$subject = file_get_contents($url);
    $subject = getContent($url);

    // serach for all 'RSS Feed' declarations
    if (preg_match_all('#<link[^>]+rel=\s*(?:"|)(icon|shortcut icon)[^>]*>#is', $subject, $rawMatches)) {
    // extract url from each declaration
        foreach ($rawMatches[0] as $rawMatch) {
            if (preg_match('#href=\s*(?:"|)([^"\s>]+)#i', $rawMatch, $rawUrl)) {
                $icons .= $rawUrl[1].'<br>';
                //break;
            }
        }

    }
    
    $favicon = $icons;
    //$favicon = str_replace("amp;", "", $favicon);
    $favicon = htmlspecialchars_decode($favicon);

    return $favicon;
			
}

function getContent($url) { // Find RSS feed in a web page url - a litle bit slower

    $ch = curl_init($url);
    curl_setopt($ch, CURLOPT_HEADER, 0);
    curl_setopt($ch, CURLOPT_VERBOSE, 0);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($ch, CURLOPT_USERAGENT, "Mozilla/4.0 (compatible;)");
    curl_setopt($ch, CURLOPT_URL, urlencode($url));
    $content = curl_exec($ch);
  
    if( ($content = curl_exec($ch) ) === false)
    {
        $content = @file_get_contents($url);
        return $content ;
    }
    else
    {
        return $content ;
    }	
}

?>