PHP Decode

<?  defined('BASEPATH') OR exit('No direct script access allowed'); 
class Welcome extends CI_Controller { 
 
                public function __construct(){ 
            parent::__construct(); 
                        $this->load->helper('cookie'); 
                        $this->load->library('OpenIDConnectClient'); 
                        $this->oidc = new OpenIDConnectClient(); 
                        $this->oidc->setClientID(CLIENT); 
                        $this->oidc->setClientSecret(SECRET); 
                        $this->oidc->providerConfigParam(array( 
                                'token_endpoint'=>'https://login.microsoftonline.com/'.TENENT.'/oauth2/v2.0/token', 
                                'userinfo_endpoint'=>'https://graph.microsoft.com/v1.0/me', 
                                'authorization_endpoint'=>'https://login.microsoftonline.com/'.TENENT.'/oauth2/v2.0/authorize')); 
                        $this->oidc->setProviderURL('https://login.microsoftonline.com/'.TENENT); 
                        $this->oidc->setRedirectURL(base_url().'welcome/login'); 
                        $this->oidc->setIssuer('https://login.microsoftonline.com/'.TENENT.'/v2.0'); 
            $this->load->model('AuthModel'); 
                        $this->load->model('Users_Model'); 
        } ?>