微信后台代码，获取用户昵称

[PHP]代码    

<?php

define("TOKEN", "weixin");
define("NO_OAUTH2", "noOauth2");
$wechatObj = new wechatCallbackapiTest();
if (isset($_GET[&#39;echostr&#39;])) {
    $wechatObj->valid();
}else{
    $wechatObj->responseMsg();
}
class wechatCallbackapiTest
{
	//微信来源验证
    public function valid()
    {
        $echoStr = $_GET["echostr"];
        if($this->checkSignature()){
            echo $echoStr;
            exit;
        }
    }
    private function checkSignature()
    {
        $signature = $_GET["signature"];
        $timestamp = $_GET["timestamp"];
        $nonce = $_GET["nonce"];

        $token = TOKEN;
        $tmpArr = array($token, $timestamp, $nonce);
        sort($tmpArr);
        $tmpStr = implode( $tmpArr );
        $tmpStr = sha1( $tmpStr );

        if( $tmpStr == $signature ){
            return true;
        }else{
            return false;
        }
    }
	//消息处理
	//仅实现了文本消息和推送事件
    public function responseMsg()
	{
		$postStr = $GLOBALS["HTTP_RAW_POST_DATA"];
		if (!empty($postStr)){
			$postObj = simplexml_load_string($postStr, &#39;SimpleXMLElement&#39;, LIBXML_NOCDATA);
			$RX_TYPE = trim($postObj->MsgType);

			switch ($RX_TYPE)
			{
				case "text":
					$resultStr = $this->receiveText($postObj);
					break;
				case "image":
					$resultStr = $this->receiveImage($postObj);
					break;
				case "location":
					$resultStr = $this->receiveLocation($postObj);
					break;
				case "voice":
					$resultStr = $this->receiveVoice($postObj);
					break;
				case "video":
					$resultStr = $this->receiveVideo($postObj);
					break;
				case "link":
					$resultStr = $this->receiveLink($postObj);
					break;
				case "event":
					$resultStr = $this->receiveEvent($postObj);
					break;
				default:
					$resultStr = "unknow msg type: ".$RX_TYPE;
					break;
			}
			echo $resultStr;
		}else {
			echo "";
			exit;
		}
	}

	function receiveText($object)
    {
        $funcFlag = 0;
        $contentStr = $this->get_name($object)."，你发送的是文本，内容为：".$object->Content;
        $resultStr = $this->transmitText($object, $contentStr, $funcFlag);
        return $resultStr;
    }
    
    public function get_name($object)
    {
        $access_token=$this->readtoken();
        //这里需要解决access_token 2个小时有效期的问题，
        //一个思路是，新定义一个函数，只要一调用这个函数，则查找数据库上一个access_token生成的时间，对比现在的时间
        //若超过2个小时，则用get方式获取新的access_token，并返回新的access_token，且存储到数据库中；
        //若不到2个小时，则把数据库中已经存储的最新的access_token提取并返回；
    	$openid=$object->FromUserName;
		//拼成获取用户信息的SSL get方式的API链接
		$infourl="https://api.weixin.qq.com/cgi-bin/user/info?access_token=".$access_token."&openid=".$openid."&lang=zh_CN";
		$result=$this->https_get($infourl);
	    //var_dump($result);
		//echo $result;
		$utfresult=utf8_encode($result);
		$mm=json_decode($result,true);
		return trim($mm[&#39;nickname&#39;]);
    }
    
    
public function newtoken()
{
//$appid="wx2b558d720b186565";//此为ipad mini账号对应的appid
//$appsecret="fe9f74ef9abf75a63d6750e365d49cad";//此为ipad mini账号对应的secret

$appid="wx66c888ff7a867359";//此为iphone对应的appid
$appsecret="fad178aa420ceef67e16dd6a4812e6dc";//此为iphone账号对应的secret
$access_token_url="https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=".$appid."&secret=".$appsecret;
//echo $access_token_url;
$access_json=$this->https_get($access_token_url);
    //$access_json=&#39;{"access_token":"sXr18Q9qklWbLFuBAi5w6B-kWeXVXW2dtHwb53Iy2wdgnebSDFs8r4NwT8uTafgB6rMXc00lsE5HayE28N9-KTHv5HyHG8b8UFxsvLBNgAU","expires_in":7200}&#39;;
    //echo $access_json;
$access=json_decode($access_json,true);
//var_dump($access);
//echo $access_array[&#39;access_token&#39;];
return $access[&#39;access_token&#39;];
}


public function savetoken($token)
{
$host=""; //数据库服务器名称
$user=""; // 连接数据库用户名
$pw=""; // 连接数据库密码
$db=""; // 数据库的名字

//连接到mysql数据库
$conn=mysql_connect($host,$user,$pw);
//mysql_query("set names &#39;utf8&#39;");
if ($conn) {
    mysql_select_db ($db);
    //mysql_set_charset("gbk");
    //$sql = "select * from token";
    $time=time();
    //$token=newtoken();
    //echo $time;
    $sql="insert into token (time,token) VALUES (&#39;$time&#39;,&#39;$token&#39;)";
    $result = mysql_query($sql) or die("Invalid query: " . mysql_error());
    //$mm=mysql_fetch_array($result);
    //var_dump($mm);
    mysql_free_result($result);
	
} else {
    echo "数据库连接KO";
}
    
}

public function readtoken()
{

$host=""; //数据库服务器名称
$user=""; // 连接数据库用户名
$pw=""; // 连接数据库密码
$db=""; // 数据库的名字

//连接到mysql数据库
$conn=mysql_connect($host,$user,$pw);
//数据库输出编码 应该与你的数据库编码保持一致
//mysql_query("set names &#39;utf8&#39;");

if ($conn) {
    //选择数据库
    mysql_select_db($db);
    //mysql_set_charset("gbk");
    //在token这个表里，按照time列降序排序，取出time列的第一个值（即limit 1）
    $sql = "select time,token from token order by time desc limit 1";

    //执行sql语句
    $result = mysql_query ($sql) or die("Invalid query: " . mysql_error());
    //获取执行后的结果，以数组保存到变量￥mm中
    $mm=mysql_fetch_array($result);
	mysql_free_result($result);
    //用列的表头访问数组，得到最后一次存储的时间戳
    $lasttime=$mm[&#39;time&#39;];
    //echo "<br><br><br><br><br>".$lasttime;
    //生成现在的时间，时间戳
    $timenow=time();
    
    //如果现在的时间减去最后一次存储的时间戳，如果小于7100，则再次sql，获取已经存储到表的token，若不是，则新生成token，并存储到数据库
    if($timenow-$lasttime<7100){
        $tokenread=$mm[&#39;token&#39;];
		return $tokenread;
		//echo "<br><br><br><br><br>".$tokenread;
    }else{
        $newtoken=$this->newtoken();
        $this->savetoken($newtoken);
        $tokenread=$newtoken;
		return $tokenread;
    }
}
    
}

    
    public function https_get($url)
	{
	    $curl = curl_init();
	    curl_setopt($curl, CURLOPT_URL, $url); 
	    curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, FALSE);
		curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, FALSE);
	    //curl_setopt($curl, CURLOPT_POST, 1);
	    //curl_setopt($curl, CURLOPT_POSTFIELDS, $data);
	    curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
	    $result = curl_exec($curl);
	    if (curl_errno($curl)) {
	       return &#39;Errno&#39;.curl_error($curl);
	    }
	    curl_close($curl);
	    return $result;
	}

	private function receiveEvent($object)
    {
        $contentStr = "";
        switch ($object->Event)
        {
            case "subscribe":
                //$uername=json_decode($object,true);
                $contentStr = "欢迎你！".$this->get_name($object);
            //当用户订阅后，需要存储下所有用户的信息，openid，昵称，地址等等；
            //调用存储 函数，需要新创建。。。。
                break;
            case "unsubscribe":
                $contentStr = "";
                break;
            case "CLICK":
                switch ($object->EventKey)
                {
					case NO_OAUTH2:
						//$contentStr = NO_OAUTH2;
						$contentStr = "[<a href=&#39;http://www.xxx.com/weixin/courseCenter.php?wx_openid=" . $object->FromUserName . "&#39;>我的课堂</a>] 
						[<a href=&#39;http://www.xxx.com/weixin/orderList.php?wx_openid=" . $object->FromUserName . "&#39;>订单记录</a>]";
						break;
					case "Oauth2":
						$contentStr = $this->toAuthMsg();
						break;
                    default:
                        $contentStr = "你点击了菜单: ".$object->EventKey;
                        break;
                }
                break;
            default:
                $contentStr = "receive a new event: ".$object->Event;
                break;
        }
        $resultStr = $this->transmitText($object, $contentStr);

		if($contentStr == NO_OAUTH2){
			header("location: http://www.php.cn/" . $object->FromUserName);
			exit;
		}

        return $resultStr;
    }

	private function transmitText($object, $content, $flag = 0)
    {
        $textTpl = "<xml>
<ToUserName><![CDATA[%s]]></ToUserName>
<FromUserName><![CDATA[%s]]></FromUserName>
<CreateTime>%s</CreateTime>
<MsgType><![CDATA[text]]></MsgType>
<Content><![CDATA[%s]]></Content>
<FuncFlag>%d</FuncFlag>
</xml>";
        $resultStr = sprintf($textTpl, $object->FromUserName, $object->ToUserName, time(), $content, $flag);
        return $resultStr;
    }

	private function toAuthMsg()
    {
        $resultStr = "<a href=&#39;https://open.weixin.qq.com/connect/oauth2/authorize?appid=wx834404c1d1dbb5ec&redirect_uri=http://www.php.cn/&#39;>马上绑定</a>";
        return $resultStr;
    }
}
?>