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;
}