前段时间弄 dedecms，微信公众号那么火，就想集成下，百度搜了下教程很多，大体都差不多，结果用了后不行，在公众号里回复关键词后，乱码，乱码，乱码,更有的教程代码贴上之后直接不回复，无论你怎么发就是不回复你，很是蛋疼，下面中狐博主把 18 年测试成功的代码贴上来，至于怎么注册微信公众号等就不发了，不会的自行百度。将代码保存为 weixin.php 放 plus 下就好
<?php define("TOKEN", "你的token名字"); require_once(dirname(__FILE__)."/../include/common.inc.php"); $dsql = new DedeSql(false); $wechatObj = new wechatCallback(); $wechatObj->valid();
class wechatCallback
{
private $items = '';
private $articleCount = 0;
private $keyword = '';
public function valid()
{
$echoStr = $_GET["echostr"];
//valid signature , option
if($this->checkSignature()){
echo $echoStr;
$this->responseMsg();
exit;
}
}
public function responseMsg()
{
//get post data, May be due to the different environments
$postStr = $GLOBALS["HTTP_RAW_POST_DATA"];
//extract post data
if (!empty($postStr)){
$postObj = simplexml_load_string($postStr, 'SimpleXMLElement', LIBXML_NOCDATA);
$fromUsername = $postObj->FromUserName;
$toUsername = $postObj->ToUserName;
$this->keyword = trim($postObj->Content);
$time = time();
$textTpl = "
<![CDATA[".$fromUsername."]]>
<![CDATA[".$toUsername."]]>
".$time."
<![CDATA[text]]>
<![CDATA[%s]]>
0
";
$picTpl = "
<![CDATA[".$fromUsername."]]>
<![CDATA[".$toUsername."]]>
".$time."
<![CDATA[news]]>
%d
%s
1
";
if($this->keyword == 'hi' || $this->keyword == '您好' || $this->keyword == '你好' ||$this->keyword ==
'hello2bizuser' ){
$contentStr = "输入关键字开始搜索！";//自定义欢迎回复;
echo sprintf($textTpl, $contentStr);
}else if( !empty( $this->keyword )){
$this->search();
if($this->articleCount == 0){
$contentStr = "抱歉，没有找到与【{$this->keyword}】相关的文章，要不你更换一下关键字，可能就有结果了哦 
";
echo sprintf($textTpl, $contentStr);
}else{
echo sprintf($picTpl,$this->articleCount,$this->items);
}
}
}else {
echo "";
exit;
}
}
private function search(){
global $dsql;
$weixin_posts = $dsql->SetQuery("Select * From `#@__archives` where title like '%".$this->keyword."%'
order by id desc LIMIT 0, 5");
$items = '';
$dsql->Execute();
while($weixin_post=$dsql->GetObject()){
$title =$weixin_post->title;
$excerpt = $weixin_post->description ;//获取摘要
$thumb = $weixin_post->litpic ;//获取缩略图;
$link = '/m/view.php?aid='.$weixin_post->id;
$items = $items . $this->get_item($title, $excerpt, $thumb, $link);
$this->articleCount++;
}
if($this->articleCount > 5) $this->articleCount = 5;
$this->items = $items;
}
private function get_item($title, $description, $picUrl, $url){
if(!$description) $description = $title;
return
'
<![CDATA['.$description.']]>
<![CDATA[http://'.$_SERVER['HTTP_HOST'].$picUrl.']]>
<![CDATA[http://'.$_SERVER['HTTP_HOST'].$url.']]>
';
}
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;
}
}
}
重要第一点
$this->keyword = trim($postObj->Content);这段代码解决的乱码问题。我的是 utf-8 版本的。
重要第二点
sort($tmpArr, SORT_STRING);
这段代码是解决的有时收到信息有时收不到信息，这个在 14 年的时候微信升级，对排序算法进行了修改，原有的 sort($tmpArr)修改为 sort($tmpArr, SORT_STRING)，网上教程都说 14 年之前没升级的教程，所以很多朋友用了后有时收到信息有时收不到信息。
重要第三点
$link = ‘/m/view.php?aid=’.$weixin_post->id;
如果在微信里打开，肯定打开的是手机版，所以如果你的手机版是在更目录下的 m 文件夹就要如上填写，这个跳转到手机版根据不同的情况修改。
