以下输出是调用var_export($charge)的结果;如何从$charge访问'paid'=>true的输出?任何想法将不胜感激。我已经尝试过$charge->_values->paid、$charge->paid等。我没有任何运气。我也尝试过$charge['_values']['paid'];Stripe_Charge::__set_state(array('_apiKey'=>'sk_test_BPZyFpcAM','_values'=>array('id'=>'ch_102kMF29T6','object'=>'charge','created'=>1381688,'li