关于php:PHP实现关注公众号登陆网站功能

要求必须公众号曾经认证
原理通过生成带参数二维码+随机字符串存入库中
而后用户扫描关注后，微信推送音讯中带 随机字符串，与库中相比实现登录

只贴外围代码

生成二维码推送

<?php    include('./curl.php');    include('./file.php');    $appid = "APPID";    $secret = "SECRET";    $get_token_url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid={$appid}&secret={$secret}";//获取access_token的url    //获取token过程开始    $token = curl_get($get_token_url);    $token = json_decode($token,true);    $token = $token['access_token'];    //获取token过程完结    $get_code_url = "https://api.weixin.qq.com/cgi-bin/qrcode/create?access_token={$token}";//获取ticket的url    $string = createToken(24);//随机字符串    $get_code_url_parmeter = array(        'expire_seconds'=>2592000,//二维码有效期 2592000是30天        'action_name'=>'QR_STR_SCENE',//微信推送音讯时的参数类型，QR_STR_SCENE为字符串        'action_info'=>array(            'scene'=>array(                'scene_str'=>$string,//微信随送音讯时的参数。            )        )    );        //模拟器数据库存入开始    $logininfo_array = array('string'=>$string,'islogin'=>0);    writeArrayToFile($logininfo_array,"logininfo.txt");    //模拟器数据库存入完结    //获取ticket开始    $get_code_url_parmeter = json_encode($get_code_url_parmeter);    $qrcode = curl_post($get_code_url,$get_code_url_parmeter);    $ticket =  json_decode($qrcode,true);    $ticket = $ticket['ticket'];    //获取ticket完结    $qrcodeimg = "https://mp.weixin.qq.com/cgi-bin/showqrcode?ticket={$ticket}";    echo $qrcodeimg;    //向前端返回二维码链接    function createToken($long){//创立随机字符串 long参数为字符串长度        $char = '1234567890ABCDEFGHIGHLMNOPQRSTUVWXYZ';        $token = '';        for ($i = 0; $i <= $long; $i++) {            $token.= $char[rand(0, strlen($char) - 1) ];        }        return $token;    }    ?>

//接管微信推送音讯

<?php    include('./file.php');    if($_SERVER['REQUEST_METHOD'] == 'GET'){//配置服务器时的验证        $signature = $_GET["signature"];        $timestamp = $_GET["timestamp"];        $nonce = $_GET["nonce"];        $echostr = $_GET["echostr"];        $token = "abcd";        $tmpArr = array($token, $timestamp, $nonce);        sort($tmpArr, SORT_STRING);        $tmpStr = implode( $tmpArr );        $tmpStr = sha1( $tmpStr );                if( $tmpStr == $signature ){            echo $echostr;        }else{            return false;        }    }else{        $xml = $GLOBALS['HTTP_RAW_POST_DATA']; //接管微信推送，xml格局        $logininfo = readFileToArray("logininfo.txt"); //读取之前存入的随机字符串。        $objectxml = simplexml_load_string($xml,'SimpleXMLElement',LIBXML_NOCDATA); //xml转objcet        $userinfo = json_decode(json_encode($objectxml),true);         //objcet 转php array        if($userinfo['EventKey']==$logininfo['string'] || $userinfo['EventKey']=='qrscene_'.$logininfo['string']){            //首次关注的推送后面多了一个qrscene_ 所以做或判断            //随机字符串和推送的字符串相匹配，证实已进入公众号            $logininfo['islogin']=1; //模仿数据库操作，登陆状态变1            $logininfo['openid']=$userinfo['FromUserName']; //模仿数据库操作，保留用户openid            if($userinfo['Event']==="subscribe"){//首次关注事件类型：subscribe                //first                 $logininfo['text']="该用户首次关注";                            }else if($userinfo['Event']==="SCAN"){//间接进入事件类型：SCAN                $logininfo['text']="该用户已关注";            }                        writeArrayToFile($logininfo,"logininfo.txt");//模仿数据库操作。        }            }    ?>