PHP 对接微信公众平台消息接口开发流程实例

<?php

define("TOKEN", "weixin");//自己定义的token 就是个通信的私钥

$wechatObj = new wechatCallbackapiTest();

$wechatObj->valid();

//$wechatObj->responseMsg();

class wechatCallbackapiTest

{

public function valid()

{

$echoStr = $_GET["echostr"];

if($this->checkSignature()){

echo $echoStr;

exit;

}

}

public function responseMsg()

{

$postStr = $GLOBALS["HTTP_RAW_POST_DATA"];

if (!empty($postStr)){

$postObj = simplexml_load_string($postStr, &#39;SimpleXMLElement&#39;, LIBXML_NOCDATA);

$fromUsername = $postObj->FromUserName;

$toUsername = $postObj->ToUserName;

$keyword = trim($postObj->Content);

$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>";

if(!empty( $keyword ))

{

$msgType = "text";

$contentStr = &#39;你好啊，屌丝&#39;;

$resultStr = sprintf($textTpl, $fromUsername, $toUsername, $time, $msgType, $contentStr);

echo $resultStr;

}else{

echo &#39;咋不说哈呢&#39;;

}

}else {

echo &#39;咋不说哈呢&#39;;

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;

}

}

}

?>

<?php

class Weixin

{

public $token = &#39;&#39;;//token

public $debug =  false;//是否debug的状态标示，方便我们在调试的时候记录一些中间数据

public $setFlag = false;

public $msgtype = &#39;text&#39;;   //(&#39;text&#39;,&#39;image&#39;,&#39;location&#39;)

public $msg = array();

public function __construct($token,$debug)

{

$this->token = $token;

$this->debug = $debug;

}

//获得用户发过来的消息（消息内容和消息类型  ）

public function getMsg()

{

$postStr = $GLOBALS["HTTP_RAW_POST_DATA"];

if ($this->debug) {

$this->write_log($postStr);

}

if (!empty($postStr)) {

$this->msg = (array)simplexml_load_string($postStr, &#39;SimpleXMLElement&#39;, LIBXML_NOCDATA);

$this->msgtype = strtolower($this->msg[&#39;MsgType&#39;]);

}

}

//回复文本消息

public function makeText($text=&#39;&#39;)

{

$CreateTime = time();

$FuncFlag = $this->setFlag ? 1 : 0;

$textTpl = "<xml>

<ToUserName><![CDATA[{$this->msg[&#39;FromUserName&#39;]}]]></ToUserName>

<FromUserName><![CDATA[{$this->msg[&#39;ToUserName&#39;]}]]></FromUserName>

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