Give this a shot
/**
* Device Detector
* @license http://www.opensource.org/licenses/mit-license.php The MIT License
*/
class Device_Detector
{
protected $accept;
protected $userAgent;
protected $isDevice = false;
protected $isAndroid = null;
protected $isAndroidtablet = null;
protected $isIphone = null;
protected $isIpad = null;
protected $isBlackberry = null;
protected $isBlackberrytablet = null;
protected $isOpera = null;
protected $isPalm = null;
protected $isWindows = null;
protected $isWindowsphone = null;
protected $isGeneric = null;
protected $devices = array(
"android" => "android.*mobile",
"androidtablet" => "android(?!.*mobile)",
"blackberry" => "blackberry",
"blackberrytablet" => "rim tablet os",
"iphone" => "(iphone|ipod)",
"ipad" => "(ipad)",
"palm" => "(avantgo|blazer|elaine|hiptop|palm|plucker|xiino)",
"windows" => "windows ce; (iemobile|ppc|smartphone)",
"windowsphone" => "windows phone os",
"generic" => "(kindle|mobile|mmp|midp|pocket|psp|symbian|smartphone|treo|up.browser|up.link|vodafone|wap|opera mini)");
public function __construct()
{
$this->userAgent = $_SERVER['HTTP_USER_AGENT'];
$this->accept = $_SERVER['HTTP_ACCEPT'];
if (isset($_SERVER['HTTP_X_WAP_PROFILE']) || isset($_SERVER['HTTP_PROFILE']))
{
$this->isDevice = true;
}
elseif (strpos($this->accept, 'text/vnd.wap.wml') > 0 || strpos($this->accept, 'application/vnd.wap.xhtml+xml') > 0)
{
$this->isDevice = true;
}
else
{
foreach ($this->devices as $device => $regexp)
{
if ($this->checkForDevice($device))
{
$this->isDevice = true;
}
}
}
}
/**
* Overloads isAndroid() | isAndroidtablet() | isIphone() | isIpad() | isBlackberry() | isBlackberrytablet() | isPalm() | isWindowsphone() | isWindows() | isGeneric() through checkForDevice()
*
* @param string $name
* @param array $arguments
* @return bool
*/
public function __call($name, $arguments)
{
$device = substr($name, 2);
if ($name == "is" . ucfirst($device) && array_key_exists(strtolower($device), $this->devices))
{
return $this->checkForDevice($device);
}
else
{
trigger_error("Method $name not defined", E_USER_WARNING);
}
}
/**
* Returns true if any type of device detected, including special ones
* @return bool
*/
public function isDevice()
{
return $this->isDevice;
}
protected function checkForDevice($device)
{
$var = "is" . ucfirst($device);
$result = $this->$var === null ? (bool) preg_match("/" . $this->devices[strtolower($device)] . "/i", $this->userAgent) : $this->$var;
if ($device != 'generic' && $result == true) {
$this->isGeneric = false;
}
return $result;
}
}
//utilize the class like so
$detector= new Device_Detector();
if ($detector->isDevice())
{
$_SESSION['device']="device";
}