src/Zend/Http/UserAgent.php
public function getServerValue($key)
    {
        $key    = strtolower($key);
        $server = $this->getServer();
        $return = null;
        if (isset($server[$key])) {
            $return = $server[$key];
        }
        unset($server);
        return $return;
    }
public function getServerValue($key)
    {
        $key    = strtolower($key);
        $server = $this->getServer();
        $return = null;
        if (isset($server[$key])) {
            $return = $server[$key];
        }
        unset($server);
        return $return;
    }
public function getServerValue ( $ key ) { $ key = strtolower ( $ key ) ; $ server = $ this -> getServer ( ) ; $ return = null ; if ( isset ( $ server [ $ key ] ) ) { $ return = $ server [ $ key ] ; } unset ( $ server ) ; return $ return ; }
Retrieve a server value

@param  string $key
@return mixed
Retrieve a server value