public function platform()
    {
        if (preg_match('/linux/i', $this->server['HTTP_USER_AGENT'])) {
            return 'linux';
        } elseif (preg_match('/macintosh|mac os x/i', $this->server['HTTP_USER_AGENT'])) {
            return 'mac';
        } elseif (preg_match('/windows|win32/i', $this->server['HTTP_USER_AGENT'])) {
            return 'windows';
        }
        return 'unknown';
    }
public function platform()
    {
        if (preg_match('/linux/i', $this->server['HTTP_USER_AGENT'])) {
            return 'linux';
        } elseif (preg_match('/macintosh|mac os x/i', $this->server['HTTP_USER_AGENT'])) {
            return 'mac';
        } elseif (preg_match('/windows|win32/i', $this->server['HTTP_USER_AGENT'])) {
            return 'windows';
        }
        return 'unknown';
    }
public function platform ( ) { if ( preg_match ( '/linux/i' , $ this -> server [ 'HTTP_USER_AGENT' ] ) ) { return 'linux' ; } elseif ( preg_match ( '/macintosh|mac os x/i' , $ this -> server [ 'HTTP_USER_AGENT' ] ) ) { return 'mac' ; } elseif ( preg_match ( '/windows|win32/i' , $ this -> server [ 'HTTP_USER_AGENT' ] ) ) { return 'windows' ; } return 'unknown' ; }
Get user platform.

@return string
Get user platform .