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php微信公众号开发(3)php实现简单微信文本通讯

微信开发前,需要设置token,这个是微信设置的,可以任意设置,用来实现微信通讯。这里有一个别人写的微信类,功能还比较不错。weixin.class.php代码如下?phpclass Weixin{public $token = '';//tokenpublic $debug = false;//是否debug的状态标示,方便我们在调试

微信开发前,需要设置token,这个是微信设置的,可以任意设置,用来实现微信通讯。这里有一个别人写的微信类,功能还比较不错。weixin.class.php代码如下

<?php
class Weixin
{
 public $token = '';//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 = 'text'; //('text','image','location')
 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 (!empty($postStr)) {
  $this->msg = (array)simplexml_load_string($postStr, 'SimpleXMLElement', LIBXML_NOCDATA);
  $this->msgtype = strtolower($this->msg['MsgType']);
 }
 }
//回复文本消息
 public function makeText($text='')
 {
 $CreateTime = time();
 $FuncFlag = $this->setFlag ? 1 : 0;
 $textTpl = "<xml>
  <ToUserName><![CDATA[{$this->msg['FromUserName']}]]></ToUserName>
  <FromUserName><![CDATA[{$this->msg['ToUserName']}]]></FromUserName>
  <CreateTime>{$CreateTime}</CreateTime>
  <MsgType><![CDATA[text]]></MsgType>
  <Content><![CDATA[%s]]></Content>
  <FuncFlag>%s</FuncFlag>
  </xml>";
 return sprintf($textTpl,$text,$FuncFlag);
 }
 
//根据数组参数回复图文消息
 public function makeNews($newsData=array())
 {
 $CreateTime = time();
 $FuncFlag = $this->setFlag ? 1 : 0;
 $newTplHeader = "<xml>
  <ToUserName><![CDATA[{$this->msg['FromUserName']}]]></ToUserName>
  <FromUserName><![CDATA[{$this->msg['ToUserName']}]]></FromUserName>
  <CreateTime>{$CreateTime}</CreateTime>
  <MsgType><![CDATA[news]]></MsgType>
  <Content><![CDATA[%s]]></Content>
  <ArticleCount>%s</ArticleCount><Articles>";
 $newTplItem = "<item>
  <Title><![CDATA[%s]]></Title>
  <Description><![CDATA[%s]]></Description>
  <PicUrl><![CDATA[%s]]></PicUrl>
  <Url><![CDATA[%s]]></Url>
  </item>";
 $newTplFoot = "</Articles>
  <FuncFlag>%s</FuncFlag>
  </xml>";
 $Content = '';
 $itemsCount = count($newsData['items']);
 $itemsCount = $itemsCount < 10 ? $itemsCount : 10;//微信公众平台图文回复的消息一次最多10条
 if ($itemsCount) {
  foreach ($newsData['items'] as $key => $item) {
  if ($key<=9) {
   $Content .= sprintf($newTplItem,$item['title'],$item['description'],$item['picurl'],$item['url']);
  }
  }
 }
 $header = sprintf($newTplHeader,$newsData['content'],$itemsCount);
 $footer = sprintf($newTplFoot,$FuncFlag);
 return $header . $Content . $footer;
 }
 public function reply($data)
 {
 
 echo $data;
 }
 public function valid()
 {
 if ($this->checkSignature()) {
  if( $_SERVER['REQUEST_METHOD']=='GET' )
  {
  echo $_GET['echostr'];
  exit;
  }
 }else{
  
  exit;
 }
 }
 private function checkSignature()
 {
 $signature = $_GET["signature"];
 $timestamp = $_GET["timestamp"];
 $nonce = $_GET["nonce"];
 
 $tmpArr = array($this->token, $timestamp, $nonce);
 sort($tmpArr);
 $tmpStr = implode( $tmpArr );
 $tmpStr = sha1( $tmpStr );
 
 if( $tmpStr == $signature ){
  return true;
 }else{
  return false;
 }
 }
 
}
?>
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