用戶點擊菜單之後，微信會將事件推送給接口程序，相應的參數及說明如表5-5所示。
表5-5 自定義菜單事件字段的參數說明
用戶點擊自定義菜單後，接口程序收到的XML數據包如下。
<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>
點擊按鈕類型為view的菜單後，上報的XML數據包如下。
<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>
點擊scancode_push類型的菜單時，接口程序收到的XML數據包如下。微信會直接運行解碼後的內容，比如直接進入關注界面。
<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>
點擊scancode_waitmsg類型的菜單時，接口程序收到的XML數據包如下。
<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>
點擊pic_sysphoto類型的菜單後，微信調用手機中的系統相機，照相後再發過來時，就收到了一個圖片消息。點擊該菜單時的XML數據包如下。
<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>
點擊pic_photo_or_album類型的菜單後，先推送菜單事件給開發者，然後推送圖片消息。點擊該菜單時的XML數據包如下。
<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>
點擊pic_weixin類型的菜單後，微信客戶端將調用系統相機，用戶可以選擇已有相片或者進行拍照，微信會將照片發送給開發者。下面是一次選擇3張照片時的XML數據包。
<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>
點擊location_select類型的菜單後，將會調用發送位置功能，在用戶發送位置後，會再推送一個地理位置消息給用戶。其XML數據包如下。
<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[廣東省深圳市南山區深南大道10000號]]></Label>
<Poiname><![CDATA[騰訊大廈]]></Poiname>
</SendLocationInfo>
</xml>
消息接口中，響應自定義菜單點擊事件的核心代碼如下。
// 接收事件消息
private function receiveEvent($object)
{
$content = "";
switch ($object->Event)
{
case "subscribe":
$content = "歡迎關注方倍工作室 ";
$content .= (!empty($object->EventKey))?("\n來自二維碼場景 ".str_replace
("qrscene_","",$object->EventKey)):"";
break;
case "unsubscribe":
$content = "取消關注";
break;
case "CLICK":
switch ($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:
$content = "點擊菜單：".$object->EventKey;
break;
}
break;
case "VIEW":
$content = "跳轉鏈接 ".$object->EventKey;
break;
case "SCAN":
$content = "掃瞄場景 ".$object->EventKey;
break;
case "LOCATION":
$content = "上傳位置：緯度 ".$object->Latitude.";經度 ".$object->Longitude;
break;
case "scancode_waitmsg":
$content = "掃碼帶提示：類型 ".$object->ScanCodeInfo->ScanType." 結果：".
$object->ScanCodeInfo->ScanResult;
break;
case "scancode_push":
$content = "掃碼推事件";
break;
case "pic_sysphoto":
$content = "系統拍照";
break;
case "pic_weixin":
$content = "相冊發圖：數量 ".$object->SendPicsInfo->Count;
break;
case "pic_photo_or_album":
$content = "拍照或者相冊：數量 ".$object->SendPicsInfo->Count;
break;
case "location_select":
$content = "發送位置：標籤 ".$object->SendLocationInfo->Label;
break;
default:
$content = "receive a new event: ".$object->Event." \n技術支持 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;
}