用户点击菜单之后，微信会将事件推送给接口程序，相应的参数及说明如表5-5所示。
表5-5 自定义菜单事件字段的参数说明
用户点击自定义菜单后，接口程序收到的XML数据包如下。
<xml> <ToUserName><![CDATA[gh_36dd0f0b3132]]></ToUserName> <FromUserName><![CDATA[oQW8FuN_DFnKZwBaUKQ1RJD2Tr9M]]></FromUserName> <CreateTime>1468050882</CreateTime> <MsgType><![CDATA[event]]></MsgType> <Event><![CDATA[CLICK]]></Event> <EventKey><![CDATA[TEXT]]></EventKey></xml>
点击按钮类型为view的菜单后，上报的XML数据包如下。
<xml> <ToUserName><![CDATA[gh_36dd0f0b3132]]></ToUserName> <FromUserName><![CDATA[oQW8FuN_DFnKZwBaUKQ1RJD2Tr9M]]></FromUserName> <CreateTime>1468050934</CreateTime> <MsgType><![CDATA[event]]></MsgType> <Event><![CDATA[VIEW]]></Event> <EventKey><![CDATA[http:// xw.qq.com/]]></EventKey> <MenuId>410418124</MenuId></xml>
点击scancode_push类型的菜单时，接口程序收到的XML数据包如下。微信会直接运行解码后的内容，比如直接进入关注界面。
<xml> <ToUserName><![CDATA[gh_36dd0f0b3132]]></ToUserName> <FromUserName><![CDATA[oQW8FuN_DFnKZwBaUKQ1RJD2Tr9M]]></FromUserName> <CreateTime>1468051082</CreateTime> <MsgType><![CDATA[event]]></MsgType> <Event><![CDATA[scancode_push]]></Event> <EventKey><![CDATA[rselfmenu_2_2]]></EventKey> <ScanCodeInfo> <ScanType><![CDATA[qrcode]]></ScanType> <ScanResult><![CDATA[http:// weixin.qq.com/r/l0Ozq9-EbYISrZvI9xaF]]></ScanResult> </ScanCodeInfo></xml>
点击scancode_waitmsg类型的菜单时，接口程序收到的XML数据包如下。
<xml> <ToUserName><![CDATA[gh_36dd0f0b3132]]></ToUserName> <FromUserName><![CDATA[oQW8FuN_DFnKZwBaUKQ1RJD2Tr9M]]></FromUserName> <CreateTime>1468051112</CreateTime> <MsgType><![CDATA[event]]></MsgType> <Event><![CDATA[scancode_waitmsg]]></Event> <EventKey><![CDATA[rselfmenu_2_1]]></EventKey> <ScanCodeInfo> <ScanType><![CDATA[qrcode]]></ScanType> <ScanResult><![CDATA[http:// weixin.qq.com/r/l0Ozq9-EbYISrZvI9xaF]]></ScanResult> </ScanCodeInfo></xml>
点击pic_sysphoto类型的菜单后，微信调用手机中的系统相机，照相后再发过来时，就收到了一个图片消息。点击该菜单时的XML数据包如下。
<xml> <ToUserName><![CDATA[gh_36dd0f0b3132]]></ToUserName> <FromUserName><![CDATA[oQW8FuNH_V1zk4x3zTN1IMoAZDW0]]></FromUserName> <CreateTime>1468051307</CreateTime> <MsgType><![CDATA[event]]></MsgType> <Event><![CDATA[pic_sysphoto]]></Event> <EventKey><![CDATA[rselfmenu_2_3]]></EventKey> <SendPicsInfo> <Count>1</Count> <PicList> <item> <PicMd5Sum><![CDATA[4cc7f5ab2c499b01655e99a868ef3519]]></PicMd5Sum> </item> </PicList> </SendPicsInfo></xml>
点击pic_photo_or_album类型的菜单后，先推送菜单事件给开发者，然后推送图片消息。点击该菜单时的XML数据包如下。
<xml> <ToUserName><![CDATA[gh_36dd0f0b3132]]></ToUserName> <FromUserName><![CDATA[oQW8FuNH_V1zk4x3zTN1IMoAZDW0]]></FromUserName> <CreateTime>1468051528</CreateTime> <MsgType><![CDATA[event]]></MsgType> <Event><![CDATA[pic_photo_or_album]]></Event> <EventKey><![CDATA[rselfmenu_2_4]]></EventKey> <SendPicsInfo> <Count>2</Count> <PicList> <item> <PicMd5Sum><![CDATA[b5c23feac0987db7ddda1b0a3addba9d]]></PicMd5Sum> </item> <item> <PicMd5Sum><![CDATA[59c3eb7e2124a75986295b8842573951]]></PicMd5Sum> </item> </PicList> </SendPicsInfo></xml>
点击pic_weixin类型的菜单后，微信客户端将调用系统相机，用户可以选择已有相片或者进行拍照，微信会将照片发送给开发者。下面是一次选择3张照片时的XML数据包。
<xml> <ToUserName><![CDATA[gh_36dd0f0b3132]]></ToUserName> <FromUserName><![CDATA[oQW8FuNH_V1zk4x3zTN1IMoAZDW0]]></FromUserName> <CreateTime>1468051592</CreateTime> <MsgType><![CDATA[event]]></MsgType> <Event><![CDATA[pic_weixin]]></Event> <EventKey><![CDATA[rselfmenu_2_5]]></EventKey> <SendPicsInfo> <Count>3</Count> <PicList> <item> <PicMd5Sum><![CDATA[59c3eb7e2124a75986295b8842573951]]></PicMd5Sum> </item> <item> <PicMd5Sum><![CDATA[b5c23feac0987db7ddda1b0a3addba9d]]></PicMd5Sum> </item> <item> <PicMd5Sum><![CDATA[4cc7f5ab2c499b01655e99a868ef3519]]></PicMd5Sum> </item> </PicList> </SendPicsInfo></xml>
点击location_select类型的菜单后，将会调用发送位置功能，在用户发送位置后，会再推送一个地理位置消息给用户。其XML数据包如下。
<xml> <ToUserName><![CDATA[gh_36dd0f0b3132]]></ToUserName> <FromUserName><![CDATA[oQW8FuNH_V1zk4x3zTN1IMoAZDW0]]></FromUserName> <CreateTime>1468051658</CreateTime> <MsgType><![CDATA[event]]></MsgType> <Event><![CDATA[location_select]]></Event> <EventKey><![CDATA[SIGNIN]]></EventKey> <SendLocationInfo> <Location_X><![CDATA[22.53996467590332]]></Location_X> <Location_Y><![CDATA[113.93487548828125]]></Location_Y> <Scale><![CDATA[17]]></Scale> <Label><![CDATA[广东省深圳市南山区深南大道10000号]]></Label> <Poiname><![CDATA[腾讯大厦]]></Poiname> </SendLocationInfo></xml>
消息接口中，响应自定义菜单点击事件的核心代码如下。
// 接收事件消息private function receiveEvent($object){ $content = ""; switch ($object->Event) { case "subscribe": $content = "欢迎关注方倍工作室 "; $content .= (!empty($object->EventKey))?("/n来自二维码场景 ".str_replace ("qrscene_","",$object->EventKey)):""; break; case "unsubscribe": $content = "取消关注"; break; case "CLICK": switch ($object->EventKey) { case "COMPANY": $content = array; $content = array("Title"=>"方倍工作室", "Description"=>"", "Pic Url"=>"http:// discuz.comli.com/weixin/weather/icon/cartoon.jpg", "Url" =>"http:// m.cnblogs.com/?u=txw1958"); break; default: $content = "点击菜单：".$object->EventKey; break; } break; case "VIEW": $content = "跳转链接 ".$object->EventKey; break; case "SCAN": $content = "扫描场景 ".$object->EventKey; break; case "LOCATION": $content = "上传位置：纬度 ".$object->Latitude.";经度 ".$object->Longitude; break; case "scancode_waitmsg": $content = "扫码带提示：类型 ".$object->ScanCodeInfo->ScanType." 结果：". $object->ScanCodeInfo->ScanResult; break; case "scancode_push": $content = "扫码推事件"; break; case "pic_sysphoto": $content = "系统拍照"; break; case "pic_weixin": $content = "相册发图：数量 ".$object->SendPicsInfo->Count; break; case "pic_photo_or_album": $content = "拍照或者相册：数量 ".$object->SendPicsInfo->Count; break; case "location_select": $content = "发送位置：标签 ".$object->SendLocationInfo->Label; break; default: $content = "receive a new event: ".$object->Event." /n技术支持 方倍工作室"; break; } if(is_array($content)){ if (isset($content[0]['PicUrl'])){ $result = $this->transmitNews($object, $content); }else if (isset($content['MusicUrl'])){ $result = $this->transmitMusic($object, $content); } }else{ $result = $this->transmitText($object, $content); } return $result;}