$datetime = "2016-04-13T11:18:38+08:00";        $code =200;        $goodslist = array(            array("app"=>"app1","id"=>"1"),            array("app"=>"app2","id"=>"2"),            array("app"=>"app3","id"=>"3"),        );        $content = array(           "datetime"  => $datetime,           "code"      => $code,           "goodslist" => $goodslist,        );        $YC = json_encode($content,TRUE);         echo var_dump($YC);                $datas = json_decode($YC);        echo var_dump($datas);                $arr=json_decode($YC,true);        $arr2=array();                 foreach($arr['goodslist'] as $val){            $arr2[]=array("app"=>$val['app'],"id"=>$val['id']);        }        echo "
";        print_r($arr2);        echo "
";

运行后的效果图：