url调用的文件 Index.php
<?php
define("APPID","wx4564ada184e726cf");
define("APPSECRET","93e822bf6bfc606c1a41a3fc96f46cd4");
define("TOKEN","libinailisha");
require("./wechat.inc.php");
$wechat = new WeChat(APPID,APPSECRET,TOKEN);
//$wechat->valid();//开始没写这个会报错，写了后运行收不到回复，注释掉就可以收到回复了。难道这个只需要运行一次？
$wechat->responseMsg();
?>
wechat.inc.php
<?php
/**
* @Author: yousun
* @Date: 2018-09-29 11:27:18
* @Last Modified by: yousun
* @Last Modified time: 2018-09-29 15:00:59
*/
class WeChat{
private $_appid;
private $_secrect;
private $_token;
function _construnct($appid,$secrect,$token){
$this->_appid=$appid;
$this->_secrect=$secrect;
$this->_token=$token;
}
/**
* 连接请求微信服务器
* @var $curl 连接的地址
* @var $https=true，是否支持https协议，默认支持
* @var $method="get" 默认请求方式 get
* @var $data 请求方发来的数据
*/
private function _request($curl,$https=true,$method='get',$data=null){
$ch=curl_init();//初始化curl
curl_setopt($ch,CURLOPT_URL,$curl);//设置访问url，这里用https还不能访问
curl_setopt($ch,CURLOPT_HEADER,false);//设置不需要头信息
curl_setopt($ch,CURLOPT_RETURNTRANSFER,true);//只返回页面内容，不执行
if ($https) {
curl_setopt($ch,CURLOPT_SSL_VERIFYPEER,false);//不做服务器认证
curl_setopt($ch,CURLOPT_SSL_VERIFYHOST,false);//不做客户端认证
}
if ($method=='post') {
curl_setopt($ch,CURLOPT_POST,true);//支持post请求方式
curl_setopt($ch,CURLOPT_POSTFIELDS,$data);//post传来的数据
}
$str=curl_exec($ch);
curl_close($ch);
return $str;
}
private function _getAccessToken(){
$file='./accesstoken';
if (file_exists($file)) {
$content=file_get_contents($file);
$content=json_decode($content);
if (time()-filemtime($file)<$content->expires_in) {
return $content->access_token;
}
}
$content=$this->_request("https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=".$this->_appid."&secret=".$this->_secrect);
file_put_contents($file, $content);
$content=json_decode($content);
return $content->access_token;
}
/**
* 生成二维码ticket
* @param integer $expires_seconds 二维有效期
* @param string $type 二维码类型临时还是永久
* @param integer $scene 场景，不同的服务不同的编号
* @return [type] json
*/
public function _getTicket($expires_seconds=604800,$type="temp",$scene=1){
if ($type=="temp") {//临时二维码
$data='{"expire_seconds": '.$expires_seconds.', "action_name": "QR_SCENE", "action_info": {"scene": {"scene_id": '.$scene.'}}}';
return $this->_request('https://api.weixin.qq.com/cgi-bin/qrcode/create?access_token='.$this->_getAccessToken(),true,"post",$data);
}else{//永久二维码
$data='{"action_name": "QR_LIMIT_SCENE", "action_info": {"scene": {"scene_id": '.$scene.'}}}';
return $this->_request("https://api.weixin.qq.com/cgi-bin/qrcode/create?access_token=".$this->_getAccessToken());
}
}
public function _getQRCode($expires_seconds,$type,$scene){
//获取票据json
$content=$this->_getTicket($expires_seconds,$type,$scene);
//json解码
$content=json_decode($content);
//获取ticket票据
$ticket=$content->ticket;
//获取二维码
return $this->_request("https://mp.weixin.qq.com/cgi-bin/showqrcode?ticket=".$ticket);
}
public function valid()//检查安全性
{
$echoStr = $_GET["echostr"];
//valid signature , option
if($this->checkSignature()){
echo $echoStr;
exit;
}
}
public function responseMsg()
{
//get post data, May be due to the different environments
//$postStr = $GLOBALS["HTTP_RAW_POST_DATA"];//获得用户发送信息//空间上关闭了
////always_populate_raw_post_data 使用 file_get_contents('php://input')
$postStr = file_get_contents('php://input');
//extract post data
if (!empty($postStr)){
/* libxml_disable_entity_loader is to prevent XML eXternal Entity Injection,
the best way is to check the validity of xml by yourself */
libxml_disable_entity_loader(true);
$postObj = simplexml_load_string($postStr, 'SimpleXMLElement', 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";
$contentStr = "欢迎光临青木树! 我".$fromUsername."接收". $toUsername;
$resultStr = sprintf($textTpl, $fromUsername, $toUsername, $time, $msgType, $contentStr);
echo $resultStr;
}else{
echo "Input something...";
}
}else {
echo "";
exit;
}
}
private function _doEvent($postObj){ //事件处理
switch($postObj->Event){
case 'subscribe': //订阅
$this->_doSubscribe($postObj);
break;
case 'unsubscribe': //取消订阅
$this->_doUnsubscribe($postObj);
break;
default:;
}
}
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;
}
}
}