微信公众号开发

<?php
define("TOKEN", "******");
$wechatObj = new wechatCallbackapiTest();
//$wechatObj->valid();
//$wechatObj->respond();

class wechatCallbackapiTest
{
    public function valid()
    {
        $echoStr = $_GET["echostr"];

        //valid signature , option
        if($this->checkSignature()){
            echo $echoStr;
            exit;
        }
    }

    private function checkSignature()
    {
        // you must define TOKEN by yourself
        if (!defined("TOKEN")) {
            throw new Exception('TOKEN is not defined!');
        }

        $signature = $_GET["signature"];
        $timestamp = $_GET["timestamp"];
        $nonce = $_GET["nonce"];

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

        if( $tmpStr == $signature ){
            return true;
        }else{
            return false;
        }
    }

}



//下面是微信的xml信息

    $source = $GLOBALS['HTTP_RAW_POST_DATA'];

    $source1 = "<xml>
         <ToUserName><![CDATA[gh_2eebd1c1d92e]]></ToUserName>
         <FromUserName><![CDATA[o8KDujlmvJYFxNe26jmtquaX05Rg]]></FromUserName>
         <CreateTime>1356076016</CreateTime>
         <MsgType><![CDATA[text]]></MsgType>
         <Content><![CDATA[岗顶]]></Content>
         </xml>";

    $params = !empty($source) && is_string($source) ? @simplexml_load_string($source, 'SimpleXMLElement', LIBXML_NOCDATA) : null;

    $FromUserName = trim($params->FromUserName);

    switch (trim($params->MsgType)) {
        case 'text':
            $content = trim($params->Content);
            if ($content) {
                output($FromUserName, $content, true);
            }
            break;

        case 'event':
            if ($params->Event == "SCAN") {//扫码
                if (preg_match("#^1$#", $params->EventKey)) {//传入了用户数字id
                    // $content = trim($params->EventKey);
                    //$result1 = array();
                    //$result2 = array();
                    //file_put_contents("txt.log",var_export($params,true),FILE_APPEND);
                    //$content = trim($params->EventKey);
                    $content="恭喜您获得优惠券！戳链接领取<a href='http://url.cn/48Ylmju'>百度外卖新手大礼包</a>";
                    output($FromUserName, $content, true);
                }
                if (preg_match("#^2$#", $params->EventKey)) {//传入了用户数字id
                    // $content = trim($params->EventKey);
                    //$result1 = array();
                    //$result2 = array();
                    //file_put_contents("txt.log",var_export($params,true),FILE_APPEND);
                    //$content = trim($params->EventKey);
                    $content="恭喜您获得优惠券！戳链接领取<a href='https://dorado.xiaojukeji.com/share.html?a=9717&b=24102&c=24100&s=148488051956077276&m=MTg1ODg2NTYzODU=&ts=1484880519&fc=d00ed4f8e3fd1546d661ea3dcf9513c6&t=QR&d=0'>滴滴出行打车券</a>";
                    output($FromUserName, $content, true);
                }
            }

            if ($params->Event == "subscribe") {
                $content="欢迎您使用天天拼吧！超值红包大礼奉上
1.送你280元投资红包赚大钱，<a href='https://lantouzi.com/union/hello?pcode=hi86xq&hmsr=hi86xq&hmmd=cpc&hmpl=zonghe'>马上领取>></a>
2.美团外卖15元超值红包，<a href='http://url.cn/48YrgMy'>马上领取>></a>
3.蘑菇街送你20元现金礼包，<a href='http://url.cn/48Yp71Y'>马上领取>></a>
4.唯品会专享30元红包，<a href='http://url.cn/48YmcyL'>马上领取>></a>
------------------
天天拼吧给您提供各类红包优惠券，包括滴滴,百度,美团,饿了么,唯品会,蘑菇街,懒投资等等，推送超高性价比的商品信息，定时分享最省钱的网购攻略。关注天天拼吧，我们为你精选最优商品，在网购路上做个精明小能手！";
                output($FromUserName, $content, true);
            }

            break;

        default :
            break;

    }




function output($ToUserName, $Content, $short = false){
    $output = "<xml>
            <ToUserName><![CDATA[%s]]></ToUserName>
            <FromUserName><![CDATA[gh_4fdbdd0ce2ca]]></FromUserName>
            <CreateTime>%s</CreateTime>
            <MsgType><![CDATA[%s]]></MsgType>
            <Content><![CDATA[%s]]></Content>
            </xml>";

    $Content = sprintf($output, $ToUserName, time(), "text", $Content);
    //$Content = trim($Content);
    echo $Content;
    exit();
}