php - fb login button has to be hit twice -

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is there way make login users don't have click login button twice? when click on login goes index (my redirect uri) doesn't login. have click button again login.

i have login script inside if ( isset( $session ) ) statement.

facebooksession::setdefaultapplication(appnumber, appsecret); $helper = new facebookredirectloginhelper('my_url'); $permissions = array(     'email',     'user_birthday',     'user_location' );  try {     if ( isset( $_session['access_token'] ) ) {         // check if access token has been set.         $session = new facebooksession( $_session['access_token'] );     } else {         // access token code parameter in url.         $session = $helper->getsessionfromredirect();     }      if ( isset( $session ) ) {         // retrieve & store access token in session.         $_session['access_token'] = $session->gettoken();         // log in code here     }  }


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