php開發微信公眾號代碼封裝（含post-get-getToken）

php開發微信公眾號代碼封裝
注意，php版本不要大于7.x,不然*$postStr = $GLOBALS[“HTTP_RAW_POST_DATA”] ;*這句代碼會受影響;

<?php 
define("token", "aaabbbccc");
define("appid", "假假，我愛過你！");
define("appsecret", "希望你過的更好！祝你幸福~~~");
// 注意php版本不要7.x以上
// 呼叫下面的方法
$postStr = $GLOBALS["HTTP_RAW_POST_DATA"];
$wx = new wechatCallbackapiTest();
if (isset($_GET['echostr'])){
   $wx->valid();
}else if(!empty($postStr)){
	$wx->responseMsg();
}



//類
class wechatCallbackapiTest
{
	//判斷是微信服務器發來的還是用戶發來的并作出反應
    public function valid()
    {
        $echoStr = $_GET["echostr"];
        if($this->checkSignature()){
			ob_clean();
            echo $echoStr;
            exit;
        }
    }
//驗證訊息
    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;
        }
    }
//接收文本
    public function responseMsg()
    {
       // $postStr = $GLOBALS["HTTP_RAW_POST_DATA"];
	  global $postStr;
	   
	 
        if (!empty($postStr)){
            $postObj = simplexml_load_string($postStr, 'SimpleXMLElement', LIBXML_NOCDATA);
            $RX_TYPE = trim($postObj->MsgType);

            //用戶發送的訊息型別判斷
            switch ($RX_TYPE)
            {
                case "text":    //文本訊息
                    $result = $this->receiveText($postObj);
                    break;
                case "image":   //圖片訊息
                    $result = $this->receiveImage($postObj);
                    break;

                case "voice":   //語音訊息
                    $result = $this->receiveVoice($postObj);
                    break;
                case "video":   //視頻訊息
                    $result = $this->receiveVideo($postObj);
                    break;
                case "location"://位置訊息
                    $result = $this->receiveLocation($postObj);
                    break;
                case "link":    //鏈接訊息
                    $result = $this->receiveLink($postObj);
                    break;
                default:
                    $result = "unknow msg type: ".$RX_TYPE;
                    break;
            }
            echo $result;
        }else {
            echo "";
            exit;
        }
    }

    /*
     * 接收文本訊息
     */
    private function receiveText($object)
    {
        $content = "你發送的是文本，內容為：".$object->Content;
        $result = $this->transmitText($object, $content);
        return $result;
    }

    /*
     * 接收圖片訊息
     */
    private function receiveImage($object)
    {
        $content = "你發送的是圖片，地址為：".$object->PicUrl;
        $result = $this->transmitText($object, $content);
        return $result;
    }

    /*
     * 接收語音訊息
     */
    private function receiveVoice($object)
    {
        $content = "你發送的是語音，媒體ID為：".$object->MediaId;
        $result = $this->transmitText($object, $content);
        return $result;
    }

    /*
     * 接收視頻訊息
     */
    private function receiveVideo($object)
    {
        $content = "你發送的是視頻，媒體ID為：".$object->MediaId;
        $result = $this->transmitText($object, $content);
        return $result;
    }

    /*
     * 接收位置訊息
     */
    private function receiveLocation($object)
    {
        $content = "你發送的是位置，緯度為：".$object->Location_X."；經度為：".$object->Location_Y."；縮放級別為：".$object->Scale."；位置為：".$object->Label;
        $result = $this->transmitText($object, $content);
        return $result;
    }

    /*
     * 接收鏈接訊息
     */
    private function receiveLink($object)
    {
        $content = "你發送的是鏈接，標題為：".$object->Title."；內容為：".$object->Description."；鏈接地址為：".$object->Url;
        $result = $this->transmitText($object, $content);
        return $result;
    }

    /*
     * 回復文本訊息
     */
    private function transmitText($object, $content)
    {
        $textTpl = "<xml>
<ToUserName><![CDATA[%s]]></ToUserName>
<FromUserName><![CDATA[%s]]></FromUserName>
<CreateTime>%s</CreateTime>
<MsgType><![CDATA[text]]></MsgType>
<Content><![CDATA[%s]]></Content>
</xml>";
        $result = sprintf($textTpl, $object->FromUserName, $object->ToUserName, time(), $content);
        return $result;
    }
	
	
	public function post($Url,$postDataArr){
			$postJosnData = json_encode($postDataArr);
			$ch = curl_init($Url);
			curl_setopt($ch, CURLOPT_HEADER, 0);
			curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
			curl_setopt($ch, CURLOPT_POST, 1);
			curl_setopt($ch, CURLOPT_POSTFIELDS, $postJosnData);
			curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
			curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE);
			$data = curl_exec($ch);
			return $data;
	}
	
	public function get($url){
	    $oCurl = curl_init();
	    if(stripos($url,"https://")!==FALSE){
	        curl_setopt($oCurl, CURLOPT_SSL_VERIFYPEER, FALSE);
	        curl_setopt($oCurl, CURLOPT_SSL_VERIFYHOST, FALSE);
	        curl_setopt($oCurl, CURLOPT_SSLVERSION, 1); //CURL_SSLVERSION_TLSv1
	    }
	    curl_setopt($oCurl, CURLOPT_URL, $url);//目標URL
	    curl_setopt($oCurl, CURLOPT_RETURNTRANSFER, 1 );//設定是否顯示頭資訊,1為顯示
	    curl_setopt($oCurl, CURLOPT_BINARYTRANSFER, true) ;//在啟用CURLOPT_RETURNTRANSFER時候將獲取資料回傳
	    $sContent = curl_exec($oCurl);
	    $aStatus = curl_getinfo($oCurl);//獲取頁面各種資訊
	    curl_close($oCurl);
	    if(intval($aStatus["http_code"])==200){
			$sContent = json_decode($sContent, true);
			// 轉成json陣列形式
			return $sContent;
	    }else{
	        return false;
	    }
	}
	public function getToken($url){
		$url=str_replace("APPID",appid,$url);
		$url=str_replace("APPSECRET",appsecret,$url);
		$data=$this->get($url);
		return $data;
	}
}




?>