function domainReplace($text, $url){
        $pattern = "/<[img|IMG].*?src=['|"](.*?(?:[.jpg|.jpeg|.png|.gif|.bmp]))['|"].*?[/]?>/";
       
        $text = stripSlashes($text);
       
        return preg_replace_callback($pattern, function($matches) use($url) {
       
                if ('/' !== substr($matches[1], 0, 1) && 'http' !== substr($matches[1], 0, 4)) {
                       
                        return str_replace($matches[1], $url . $matches[1], $matches[0]);
                }
               
                return $matches[0];
        },
        $text);
}