Problem with quotes

Hi, Sorry for such a laim question. I have this code: $host = 'http://' . $_SERVER['HTTP_HOST']; "foreach($browser as $key => $val){

        echo "<img src=\"dcs/" . $key . '.png"' . " />" . " ";
        (...) "

but it has a bug, I need to add the server domain before the picture, so I did: $host = 'http://' . $_SERVER['HTTP_HOST']; "foreach($browser as $key => $val){

        echo $host . "<img src=\"dcs/" . $key . '.png"' . " />" . " ";
        (...)"

But this way, all it echoes is the $host variable. What am I missing here ? Any help would be appreciated. Warm Regards, Mário Gamito