Get the link to the first image in the article

   function pickupImage($html) {
       preg_match_all('//U', $html, $matches, PREG_PATTERN_ORDER);
       if(count($matches[0]) > 0) {
           foreach ($matches[0] as $match)
           {
               preg_match('/src="(.+)"/U', $match, $src);
               return $src[1];
           }
       }
       else
           return '';
   }