微信接口(一)创建菜单&自动回复

刚划拉完微信。做一个笔记这里的数据是写死的，还有一份是通过查询数据库进行自动回复，自定义菜单设置的。不过因为使用到数据库，最好在网站后台吧微信平台开发集成进去。所以代码较多就先不放了。有问题的地方请留言，我也学习一下。

<?php
/*
* @author；dou
*/
//token值(令牌)，与公众平台设置一致
define("TOKEN", "dou");
$wechatObj = new wechatCallbackapiTest();
if (!isset($_GET['echostr'])) {
$wechatObj->responseMsg();
}else{
$wechatObj->valid();
}
class wechatCallbackapiTest
{
//验证签名
public function valid()
{
$echoStr = $_GET["echostr"];
$signature = $_GET["signature"];
$timestamp = $_GET["timestamp"];
$nonce = $_GET["nonce"];
$token = TOKEN;
$tmpArr = array($token, $timestamp, $nonce);
sort($tmpArr, SORT_STRING);
$tmpStr = implode($tmpArr);
$tmpStr = sha1($tmpStr);
if($tmpStr == $signature){
echo $echoStr;
exit;
}
}

//响应消息
public function responseMsg()
{
$postStr = $GLOBALS["HTTP_RAW_POST_DATA"];
if (!empty($postStr)){
//$access_token = $this->get_access_token();//获取access_token
//$this->logger("getmenu ".$this->getmenu($access_token));
$this->createmenu($access_token);//创建菜单
//获得菜单
//$this->logger("getmenu ".$this->getmenu($access_token));
$postObj = simplexml_load_string($postStr, 'SimpleXMLElement', LIBXML_NOCDATA);
$RX_TYPE = trim($postObj->MsgType);
if (($postObj->MsgType == "event") && ($postObj->Event == "subscribe" || $postObj->Event == "unsubscribe")){
//过滤关注和取消关注事件
}else{
}

//消息类型分离
switch ($RX_TYPE)
{
case "event":
$result = $this->receiveEvent($postObj);
break;
case "text":
$result = $this->receiveText($postObj);
break;
default:
$result = "unknown msg type: ".$RX_TYPE;
break;
}
echo $result;
}else {
echo "";
exit;
}
}

//接收事件消息
private function receiveEvent($object)
{
$content = "";
switch ($object->Event)
{
case "subscribe":
$content = "测试内容：欢迎关注";
break;
case "unsubscribe":
$content = "取消关注";
break;
default:
$content = "no message!!!";
break;
}

if(is_array($content)){
if (isset($content[0]['PicUrl'])){
$result = $this->transmitNews($object, $content);
}
}else{
$result = $this->transmitText($object, $content);
}
return $result;
}

//接收文本消息
private function receiveText($object)
{
$keyword = trim($object->Content);
if (strstr($keyword, "1")||strstr($keyword, "2")||strstr($keyword, "3")||strstr($keyword, "4")||strstr($keyword, "5")||strstr($keyword, "6")){
$content = "测试内容：[文字信息]自动回复";
}
else if (strstr($keyword, "11") || strstr($keyword, "22") ){
$content = array();
$content[] = array("Title"=>"[图文消息]标题", "Description"=>"详情信息", "PicUrl"=>"demo.jpg", "Url" =>"http://mp.weixin.qq.com/s");
}else{
$content="";
$content = date("Y-m-d H:i:s",time())." OpenID：".$object->FromUserName." dou";
}
if(is_array($content)){
if (isset($content[0])){
$result = $this->transmitNews($object, $content);
}
}else{
$result = $this->transmitText($object, $content);
}
return $result;
}

//回复文本消息
private function transmitText($object, $content)
{
if (!isset($content) || empty($content)){
return "";
}
$xmlTpl = "<xml>
<ToUserName><![CDATA[%s]]></ToUserName>
<FromUserName><![CDATA[%s]]></FromUserName>
<CreateTime>%s</CreateTime>
<MsgType><![CDATA[text]]></MsgType>
<Content><![CDATA[%s]]></Content>
</xml>";
$result = sprintf($xmlTpl, $object->FromUserName, $object->ToUserName, time(), $content);

return $result;
}

//回复图文消息
private function transmitNews($object, $newsArray)
{
if(!is_array($newsArray)){
return "";
}
$itemTpl = " <item>
<Title><![CDATA[%s]]></Title>
<Description><![CDATA[%s]]></Description>
<PicUrl><![CDATA[%s]]></PicUrl>
<Url><![CDATA[%s]]></Url>
</item>
";
$item_str = "";
foreach ($newsArray as $item){
$item_str .= sprintf($itemTpl, $item['Title'], $item['Description'], $item['PicUrl'], $item['Url']);
}
$xmlTpl = "<xml>
<ToUserName><![CDATA[%s]]></ToUserName>
<FromUserName><![CDATA[%s]]></FromUserName>
<CreateTime>%s</CreateTime>
<MsgType><![CDATA[news]]></MsgType>
<ArticleCount>%s</ArticleCount>
<Articles>
$item_str </Articles>
</xml>";

$result = sprintf($xmlTpl, $object->FromUserName, $object->ToUserName, time(), count($newsArray));
return $result;
}

/////////////////

private function get_access_token()
{
$url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=*&secret=*";
$data = json_decode(file_get_contents($url),true);
if($data['access_token']){
return $data['access_token'];
}else{
return "获取access_token错误";
}
}

//自定义菜单
public function createmenu($access_token)
{
$url = "https://api.weixin.qq.com/cgi-bin/menu/create?access_token=".$access_token;
$arr = array(
'button' =>array(
array(
'name'=>urlencode("菜单1"),
'sub_button'=>array(
array(
'name'=>urlencode("子菜单1"),
'type'=>'view',
'url'=>'http://www.baidu.com'
),
)),
)
);

$jsondata = urldecode(json_encode($arr));

$ch = curl_init();
curl_setopt($ch,CURLOPT_URL,$url);
curl_setopt($ch,CURLOPT_RETURNTRANSFER,1);
curl_setopt($ch,CURLOPT_POST,1);
curl_setopt($ch,CURLOPT_POSTFIELDS,$jsondata);
curl_exec($ch);
curl_close($ch);
}

private function getmenu($access_token)
{
$url = "https://api.weixin.qq.com/cgi-bin/menu/get?access_token=".$access_token;
$data = file_get_contents($url);
return $data;
}

}
?>

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