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微信開(kāi)發(fā)時(shí), 如何進(jìn)行服務(wù)器驗(yàn)證及接收回復(fù)信息呢?　分享原生ＰＨＰ代碼如下：

if(isset($_GET["echostr"])){
    $signature = $_GET["signature"];
  	$timestamp = $_GET["timestamp"];
  	$nonce     = $_GET["nonce"]; 
    //驗(yàn)證時(shí)會(huì)傳遞這個(gè)信息
  	$echostr   = $_GET["echostr"];

  	$token = "zhuangzi";
  	$array = array($token, $timestamp, $nonce); 
    //放到一個(gè)數(shù)組里
  	sort($array, SORT_STRING);
     // 將三人參數(shù)進(jìn)行字典排序
  	$str = implode($array);
     // 將三個(gè)參數(shù)拼接成一個(gè)字符串
  	$str = sha1($str); 
    // 進(jìn)行 sha1加密
  	if($signature == $str){
  		echo $echostr;
  		exit();
  	}
  	else{
  		return false;
  	}
}
else{
    $postStr = $GLOBALS["HTTP_RAW_POST_DATA"];
    //解析post來(lái)的XML為一個(gè)對(duì)象$postObj
    $postObj      = simplexml_load_string($postStr,
     'SimpleXMLElement', LIBXML_NOCDATA);
      $fromUsername = $postObj->FromUserName;
       //請(qǐng)求消息的用戶
      $toUsername   = $postObj->ToUserName; 
      //"我"的公眾號(hào)id
      $content      = trim($postObj->Content);
       //消息內(nèi)容
      $MsgType      = trim($postObj->MsgType);
      $textTpl = "<xml>
            <ToUserName><![CDATA[%s]]></ToUserName>
            <FromUserName><![CDATA[%s]]></FromUserName>
            <CreateTime>%s</CreateTime>
            <MsgType><![CDATA[%s]]></MsgType>
            <Content><![CDATA[%s]]></Content>
            </xml>";
      if($MsgType == "text"){
        $ret  = file_put_contents("1.txt", $content);
        //發(fā)送消息到 微信 begin
        $contentStr = $content;
        $time = time();
        $resultStr = sprintf($textTpl, $fromUsername, 
          $toUsername, $time, $MsgType, $contentStr);
        echo $resultStr;
        //發(fā)送消息到 微信 end
      }
      elseif($MsgType == "image"){
        $picurl = trim($postObj->PicUrl);
        $file = file_get_contents($picurl);
        $path = time().".jpg";
        $ret  = file_put_contents($path, $file);
      }
      
}