'PAY', 'buttonOptions'=>array( 'class'=>'btn btn-danger', 'style'=>'width: 80px;', ), 'options'=>[ 'key'=>Yii::$app->Paystack->testPublicKey, 'email'=>'smladeoye@ymail.com', 'ref'=>'123456789', 'amount'=>'200000', 'currency' =>'', 'plan' =>'', 'quantity' =>'', 'callback'=>'function(response){alert(response.trxref);};', //'callbackUrl' =>'', ], ] ); ?>