前几天由于公司要开发微信公众平台，打开公众号开发平台官网，咋一看官方文档，竟然没得一个demo，弄了半天才明白是咋个回事，看起来容易但又感觉不好下手；网上这方面的代码案例比较少，而且都是凌乱的几个方法，新手很难接受，
现在把我们公众平台开发的完整代码贴出来给大家参考一下，让新手少走点弯路，文章最后有我对整个代码总结的中心思想；
<?php
header("Content-type: text/html; charset=utf-8");
define ( "TOKEN", "aidaijia" );
$wechatObj = new WeiXin();
class WeiXin{
private static $ACCESS_TOKEN = 0; //当前access_token的值
private static $ACCESS_TIME = 0; //access_token最后一次更新的时间
private static $XMLDATA; //接收请求的xml数据
private static $ARRELE = array(); //存放请求的xml节点 用来判断是属于那种请求
public function __construct()
{
// $this->valid();die; //服务器验证
// $this->createMenu();die; //自定义菜单
$path = dirname(__FILE__);
$acpath = $path."/weixin.c"; //存放最近一次access_token更新的时间
$access = $path."/access_token.c"; //最近一次更新的access_token
$xml = $path."/xmldata.c"; //存放最近一次接收的xml数据
//检查access_token是否过期
if(!file_exists($acpath)){
$this->getAssessToken();
file_put_contents($acpath, self::$ACCESS_TIME);
file_put_contents($access, self::$ACCESS_TOKEN);
}else
{
$acint = file_get_contents($acpath)+0;
if((time()-$acint)>=7000)
{
$this->getAssessToken();
file_put_contents($acpath, self::$ACCESS_TIME);
file_put_contents($access, self::$ACCESS_TOKEN);
}else
{
self::$ACCESS_TOKEN = file_get_contents($access);
}
}
//校验信息真实性（防止微信以外的第三方灌水机器人）
$this->checkSignature();
//将请求的xml数据存为全局
self::$XMLDATA = $GLOBALS["HTTP_RAW_POST_DATA"];
//添加xml数据日志
file_put_contents($xml, self::$XMLDATA);
$this->begin();
}
private function begin()
{
$postObj = simplexml_load_string(self::$XMLDATA, 'SimpleXMLElement', LIBXML_NOCDATA);
foreach ($postObj as $key => $value) {
array_push(self::$ARRELE,$key);
}
//事件消息
if(in_array("Event", self::$ARRELE))
{
//新用户关注
if($postObj->Event=="subscribe")
{
$textTpl = "
<xml>
<ToUserName><![CDATA[".$postObj->FromUserName."]]></ToUserName>
<FromUserName><![CDATA[".$postObj->ToUserName."]]></FromUserName>
<CreateTime>".time()."</CreateTime>
<MsgType><![CDATA[news]]></MsgType>
<ArticleCount>2</ArticleCount>
<Articles>
<item>
<Title><![CDATA[爱代驾送福利：百万代驾券、iPhone6大奖等你来拿！]]></Title>
<Description><![CDATA[爱代驾送福利]]></Description>
<PicUrl><![CDATA[http://aidaijia.com/Public/Index/image/tu1.jpg]]></PicUrl>
<Url><![CDATA[http://aidaijia.com/home]]></Url>
</item>
<item>
<Title><![CDATA[酒后有车咋个走，爱代驾只需29]]></Title>
<Description><![CDATA[爱代驾最低29元起]]></Description>
<PicUrl><![CDATA[http://aidaijia.com/Public/Index/image/syx4.jpg]]></PicUrl>
<Url><![CDATA[http://aidaijia.com/Index/Index/price]]></Url>
</item>
</Articles>
</xml>";
echo $textTpl;
return ;
}
//取消关注
if($postObj->Event=="unsubscribe")
{
$sql = "delete from dj_weixin where wuser='$postObj->FromUserName'";
$mysqli = new mysqli("localhost", "username", "666666", "driver");
$mysqli->query($sql);
$mysqli->close();
return ;
}
//更新用户的坐标
if($postObj->Event=='LOCATION')
{
//上报地理位置事件
if(in_array("Latitude",self::$ARRELE) )
{
$time = time();
$obj = simplexml_load_string(self::$XMLDATA, 'SimpleXMLElement', LIBXML_NOCDATA);
$sql = "insert into `dj_weixin` (`wuser`, `wlon`, `wlat`, `wtime`,`wto`) values ('$obj->FromUserName', $obj->Longitude, $obj->Latitude, $time,'$obj->ToUserName') ON DUPLICATE KEY UPDATE `wlon` = $obj->Longitude, `wlat` = $obj->Latitude, `wtime` =$time, `wto` ='$obj->ToUserName' ;";
// $access = dirname(__FILE__)."/access_token.c";
// file_put_contents($access, $sql);
$mysqli = new mysqli("localhost", "username", "666666", "driver");
$mysqli->query($sql);
$mysqli->close();
return;
}
}
}
//用户主动发送了位置信息
if(in_array("Location_X",self::$ARRELE))
{
self::fdriver();
return;
}
//自定义菜单事件
if(in_array("EventKey",self::$ARRELE))
{
if(substr($postObj->EventKey,0,3)=='WD_')
{
self::menuevent();
return ;
}
}
//普通消息
if($postObj->MsgType=='text')
{
self::responseMsg();
return;
}
}
private function checkSignature(){
$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 ){
return true;
}else{
return false;
}
}
//获取access_token
public function getAssessToken(){
$url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=wxfa50fcdbae10f8c8&secret=e845e613792e369034a91b9bd2db513a ";
$curl = curl_init($url);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, true); //以文件流的形式返回
$data = curl_exec($curl);
$arr = json_decode($data, true); //把返回的json字符串转化为数组
self::$ACCESS_TOKEN = $arr['access_token']; //更新access_token
self::$ACCESS_TIME = time(); //最后一次获取access_token的时间
curl_close($curl);
// echo self::$ACCESS_TOKEN."<br>";
// echo self::$ACCESS_TIME."<br>";
}
//回复文本消息
public function responseMsg()
{
$postObj = simplexml_load_string(self::$XMLDATA, 'SimpleXMLElement', LIBXML_NOCDATA);
$fromUsername = $postObj->FromUserName;
$toUsername = $postObj->ToUserName;
$content = $postObj->Content;
$contentStr = "";
if(substr($content,0,1)=='@')
{
$pos = substr($content,1);
if(strlen($pos)!=11)
{
$contentStr = "温馨提示：请填写正确的手机号";
}else
{
$path = dirname(__FILE__);
$xmlele = $path."/xmlele.c";
$sql = "select * from dj_order_info where from_phonenum='$pos' order by orderid desc limit 4";
$mysqli = new mysqli("localhost", "username", "666666", "driver");
$result = $mysqli->query($sql);
$mysqli->close();
while($obj = $result->fetch_object()){
$contentStr.="单号".$obj->order_num."\n------->时间".substr($obj->call_time,5,5)."\n";
}
if($contentStr=='')
$contentStr = "你好，没有查询到相关订单";
}
}
$time = time();
$textTpl = "<xml>
<ToUserName><![CDATA[%s]]></ToUserName>
<FromUserName><![CDATA[%s]]></FromUserName>
<CreateTime>%s</CreateTime>
<MsgType><![CDATA[%s]]></MsgType>
<Content><![CDATA[%s]]></Content>
<FuncFlag>0</FuncFlag>
</xml>";
$msgType = "text";
if($contentStr=='')
$contentStr = "你好，我是爱代驾，你可以在这里快速找代驾，近期订单查询，进入微官网还有更多惊喜，24小时客服热线:4000700029
爱代驾是一家历史悠久的代驾公司，公司本着以人为本，诚信经营的宗旨，在全国享有很高的声誉
";
$resultStr = sprintf($textTpl, $fromUsername, $toUsername, $time, $msgType, $contentStr);
echo $resultStr;
}
// 自定义菜单事件消息
public static function menuevent()
{
$obj = simplexml_load_string(self::$XMLDATA, 'SimpleXMLElement', LIBXML_NOCDATA);
$eventKey = $obj->EventKey;
$fromUsername = $obj->FromUserName;
$toUsername = $postObj->ToUserName;
$time = time();
$msgType = "text";
$content = $eventKey;
switch($eventKey)
{
case "WD_JIAGE":
$content = "7:00-21:00=>29元起\n21:00-24:00=>49元起\n0:00-7:00=>69元起\n"; break;
case "WD_ZHAODAIJIA":
self::finddriver($fromUsername);break;
// $content = "请发送你的位置以便寻找附近司机:\n1、点击左下方 '小键盘' \n2、点击右下方 '+号键' \n3、点击 '位置' 图标\n4、完成定位后点击 '发送'"; break;
case "WD_DINGDAN":
$content = "请发送@+手机号查询"; break;
case "WD_FUWUREXIAN":
$content = "24小时服务热线：4000-7000-29"; break;
default:
// $content = "无法识别";
}
$textTpl = "<xml>
<ToUserName><![CDATA[%s]]></ToUserName>
<FromUserName><![CDATA[%s]]></FromUserName>
<CreateTime>%s</CreateTime>
<MsgType><![CDATA[%s]]></MsgType>
<Content><![CDATA[%s]]></Content>
<FuncFlag>0</FuncFlag>
</xml>";
$resultStr = sprintf($textTpl, $fromUsername, $toUsername, $time, $msgType, $content);
echo $resultStr;
}
//寻找附近司机，针对于开启了位置服务的用户，我方公众号需要在公众平台开启高级权限接口并启用位置服务
public static function finddriver($username)
{
// $access = dirname(__FILE__)."/access_token.c";
$sql = "select * from dj_weixin where wuser = '$username'";
$mysqli = new mysqli("localhost", "username", "666666", "driver");
$res = $mysqli->query($sql);
$mysqli->close();
$count = 0;
if($res->num_rows!=0)
{
$obj = $res->fetch_object();
$lon = $obj->wlon;
$lat = $obj->wlat;
$fromUsername = $obj->wuser;
$toUsername = $obj->wto;
$time = $obj->wtime;
$nowtime = time();
if(($nowtime-$time)>120)
{
$count=-1;
goto flag;
}
}else
{
$obj = simplexml_load_string(self::$XMLDATA, 'SimpleXMLElement', LIBXML_NOCDATA);
$fromUsername = $obj->FromUserName;
$toUsername = $obj->ToUserName;
$count = -1;
goto flag;
}
$sql = "call queryDriverByClient($lat,$lon)";
$mysqli = new mysqli("localhost", "username", "66666666", "driver");
$result = $mysqli->query($sql);
$mysqli->close();
$count = $result->num_rows;
//如果没有获取到用户的地理信息 直接跳到这里
flag :
$textTpl = "<xml>
<ToUserName><![CDATA[%s]]></ToUserName>
<FromUserName><![CDATA[%s]]></FromUserName>
<CreateTime>%s</CreateTime>
<MsgType><![CDATA[text]]></MsgType>
<Content><![CDATA[%s]]></Content>
<FuncFlag>0</FuncFlag>
</xml>";
if($count>0)
{
$content = "你附近有".$count."个空闲司机。\n马上去选司机: http://aidaijia.com/find?lat=".$lat."&lon=".$lon;
}
else
{
if($count==-1)
$content = "无法获取你的地理位置，请点击爱代驾头像，在资料页面把[提供位置信息]开启\n你也可以手动发送地理位置信息：\n1、点击左下方 '小键盘' \n2、点击右下方 '+号键' \n3、点击 '位置' 图标\n4、完成定位后点击 '发送'";
else
$content = "抱歉！你附近暂没有空闲司机。你可以等会儿在操作或拨打客服咨询4000-7000-29\n";
}
$time = time();
$resultStr = sprintf($textTpl, $fromUsername, $toUsername, $time, $content);
echo $resultStr;
}
//寻找附近的司机 针对没有开启位置服务的用户 (需要用户手动发送位置信息)
public static function fdriver()
{
$obj = simplexml_load_string(self::$XMLDATA, 'SimpleXMLElement', LIBXML_NOCDATA);
$lon = $obj->Location_Y ; //经度
$lat = $obj->Location_X ; //纬度
$fromUsername = $obj->FromUserName;
$toUsername = $obj->ToUserName;
$sql = "call queryDriverByClient($lat,$lon)";
$mysqli = new mysqli("localhost", "username", "666666", "driver");
$result = $mysqli->query($sql);
$mysqli->close();
$count = $result->num_rows;
$textTpl = "<xml>
<ToUserName><![CDATA[%s]]></ToUserName>
<FromUserName><![CDATA[%s]]></FromUserName>
<CreateTime>%s</CreateTime>
<MsgType><![CDATA[text]]></MsgType>
<Content><![CDATA[%s]]></Content>
<FuncFlag>0</FuncFlag>
</xml>";
if($count>0)
{
$content = "你附近有".$count."个空闲司机。\n马上去选司机: http://aidaijia.com/find?lat=".$lat."&lon=".$lon;
}
else
{
$content = "抱歉！你附近暂没有空闲司机。你可以等会儿在操作或拨打客服咨询4000-7000-29\n";
}
$time = time();
$resultStr = sprintf($textTpl, $fromUsername, $toUsername, $time, $content);
echo $resultStr;
}
//设置菜单
public function createMenu(){
$url = "https://api.weixin.qq.com/cgi-bin/menu/create?access_token=DWJG0l5MhgkJBDfjg032jnOfjwZX3Fatk1PccFNgJuRYr0b8I3w-jd77P2_p95pJd4xtFB_DdZRi5k-WHaSNGA";
$btnjson = '{
"button":[{
"type":"click",
"name":"找代驾",
"key":"WD_ZHAODAIJIA"
},
{
"name":"微助手",
"sub_button":[
{
"type":"view",
"name":"微官网",
"url":"http://aidaijia.com/home"
},
{
"type":"view",
"name":"路况信息",
"url":"http://map.baidu.com/mobile/webapp/index/index/foo=bar/vt=map&traffic=on&viewmode=no_ad/?third_party=ucsearchbox#index/index/foo=bar/vt=map&traffic=on&viewmode=no_ad"
},
{
"type":"click",
"name":"最近订单",
"key":"WD_DINGDAN"
}
]
},
{
"name":"更多服务",
"sub_button":[
{
"type":"click",
"name":"服务热线",
"key":"WD_FUWUREXIAN"
},
{
"type":"click",
"name":"价格列表",
"key":"WD_JIAGE"
},
{
"type":"view",
"name":"下载客户端",
"url":"http://aidaijia.com/d"
}
]
}]
}';
$curl = curl_init();
curl_setopt($curl, CURLOPT_URL, $url);
curl_setopt($curl, CURLOPT_POST, 1);
curl_setopt($curl, CURLOPT_POSTFIELDS, $btnjson);
$data = curl_exec($curl);
curl_close($curl);
echo $data;
}
//验证服务器
public function valid()
{
$echoStr = $_GET["echostr"];
//valid signature , option
if($this->checkSignature()){
echo $echoStr;
exit;
}
}
//收尾工作
public function __destruct()
{
// ..
}
}
?>
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