Mobile OS detection in PHP CodeIgniter

For doing this there is one good plugin called "Mobile Detect".

Just download library from https://github.com/serbanghita/Mobile-Detect Put Mobile_Detect.php inside libraries folder of ci application.

Whenever you need to detect the OS or any other parameter, use following code:

public function index() {
    $this -> load -> library('Mobile_Detect');
    $detect = new Mobile_Detect();
    if ($detect->isMobile() || $detect->isTablet() || $detect->isAndroidOS()) {
        header("Location: ".$this->config->item('base_url')."/mobile"); exit;
    }
}

You can find variety of functions like this in here:

// Include and instantiate the class.
require_once 'Mobile_Detect.php';
$detect = new Mobile_Detect;

// Any mobile device (phones or tablets).
if ( $detect->isMobile() ) {

}

// Any tablet device.
if( $detect->isTablet() ){

}

// Exclude tablets.
if( $detect->isMobile() && !$detect->isTablet() ){

}

// Check for a specific platform with the help of the magic methods:
if( $detect->isiOS() ){

}

if( $detect->isAndroidOS() ){

}

// Alternative method is() for checking specific properties.
// WARNING: this method is in BETA, some keyword properties will change in the future.
$detect->is('Chrome')
$detect->is('iOS')
$detect->is('UC Browser')
// [...]

// Batch mode using setUserAgent():
$userAgents = array(
'Mozilla/5.0 (Linux; Android 4.0.4; Desire HD Build/IMM76D) AppleWebKit/535.19 (KHTML, like Gecko) Chrome/18.0.1025.166 Mobile Safari/535.19',
'BlackBerry7100i/4.1.0 Profile/MIDP-2.0 Configuration/CLDC-1.1 VendorID/103',
// [...]
);
foreach($userAgents as $userAgent){

  $detect->setUserAgent($userAgent);
  $isMobile = $detect->isMobile();
  $isTablet = $detect->isTablet();
  // Use the force however you want.

}

// Get the version() of components.
// WARNING: this method is in BETA, some keyword properties will change in the future.
$detect->version('iPad'); // 4.3 (float)
$detect->version('iPhone') // 3.1 (float)
$detect->version('Android'); // 2.1 (float)
$detect->version('Opera Mini'); // 5.0 (float)
// [...]

Find documentation for this on: https://github.com/serbanghita/Mobile-Detect/wiki/Code-examples.

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