Extension:FaviconLink

<?php
# FaviconLink MediaWiki extension
#
# To activate the extension, include it from your LocalSettings.php
# with: require_once ("extensions/FaviconLink.php");

$wgExtensionCredits['specialpage'][] = array(
        'name' => 'FaviconLink',
        'author' => 'FlappySocks',
        'url' => 'http://www.mediawiki.org/wiki/Extension:FaviconLink',
        'description' => 'Grabs the favicon from the site you\'re linking to, and puts it in front of the link.'
);
 
$wgExtensionFunctions[] = "wfFaviconLink";
 
function wfFaviconLink() {
    global $wgParser;
    $wgParser->setHook( "ilink", "FaviconLink" );
}
 
# The callback function for converting the input text to HTML output
function FavIconLink( $input) {
 
    //Look for the start of the URL
    $pt1 = strpos($input, "://");
    if ($pt1===false) $input="http://".$input;
 
    //Look for the end of the domain
    $pt1 = strpos($input, "/",9);
    if ($pt1===false) $pt1 = strpos($input, " ",9);
    if ($pt1===false) $pt1 = strlen($input);
    $favicon = substr($input, 0, $pt1)."/favicon.ico";
 
 
    //Look for the name/description
    $pt2 = strpos($input, " ",$pt1);
    if ($pt2===false)
    {
      $link=substr($input, 0, strlen($input));
      $linkname = $link;
    }
    else
    {
      $link=substr($input, 0, $pt2);
      $linkname = substr($input, $pt2+1, strlen($input)-$pt2-1);
    }
 
    $favicon = htmlspecialchars($favicon);
    $linkname = htmlspecialchars($linkname);
    $link = htmlspecialchars($link);
 
    return '<a href="'.$link.'"><img src="'.$favicon.'"> '.$linkname.'</a>';
}

include ("extensions/FaviconLink.php");