微信一旦对接了消息回复接口等，菜单就只能自定义开发了。不能在网页设置，那么这里是什么原理呢？

　　其实，关于原理，微信很简单，只是提供了一个修改菜单的入口，然后你把你的access_token和菜单设置数据请求一下就设置或更改了。话不多说，这里封装了一个菜单设置类，里面写了三个方法，一个access_token方法、一个postcurl方法还有一个主方法createmenu方法（里面设置菜单数据和请求结果回复操作）。一起来看代码吧！

　　

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     APPID . "&secret=" . $this->APPSECRET;12         $date = $this->postcurl($url);13         $access_token = $date['access_token'];14         return $access_token;15     }16 17     //拼接参数，带着access_token请求创建菜单的接口18     public function createmenu()19     {20 21         $data = '{22         "button":[23 24       {25           "type":"click",26                "name":"免费码获取",27                "key":"freekey"28       },29 30       {31           "name":"休闲时间",32            "sub_button":[33             {34                 "type":"view",35                "name":"百度一下",36                "url":"http://www.baidu.com/"37             },38             {39                 "type":"view",40                "name":"qq音乐",41                "url":"https://y.qq.com/n/yqq/toplist/4.html"42             },43             {44                 "type":"view",45                "name":"腾讯新闻",46                "url":"http://qq.com"47             }]48        },49 50         {51             "name":"生活助手",52            "sub_button":[53             {54                 "type":"view",55                "name":"近日天气",56                "url":"http://www.weather.com.cn/"57             },58             {59                 "type":"view",60                "name":"百度地图",61                "url":"https://map.baidu.com/"62             },63             {64                 "type":"view",65                "name":"360安全卫士",66                "url":"http://360.cn"67             }]68         }69        ]70  }';71         $access_token = $this->index();72         $url = "https://api.weixin.qq.com/cgi-bin/menu/create?access_token=" . $access_token;73         $result = $this->postcurl($url, $data);74         if($result['errcode']==0&&$result['errmsg']=='ok'){75             echo "恭喜您，菜单创建成功！！".date('Y-m-d H:m:s',time());76         }else{77             echo $result;78         }79     }80 81     //请求接口方法82     function postcurl($url,$data = null)83     {84         $ch = curl_init();85         curl_setopt($ch, CURLOPT_URL, $url);86         curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);87         curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE);88         if (!empty($data)) {89             curl_setopt($ch, CURLOPT_POST, TRUE);90             curl_setopt($ch, CURLOPT_POSTFIELDS, $data);91         }92         curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);93         $output = curl_exec($ch);94         curl_close($ch);95         return $output = json_decode($output, true);96     }97 98     }