参数二维码做(扫码登录)"/>
利用微信公共号的带参数二维码做(扫码登录)
<script type="text/javascript">var t2 ='';$(function() {var rand = parseInt(Math.random() * (999999999 - 10000000 + 1) + 10000000); //生成随机数做为二维码的参数 (用来判断扫码的用户)//生成二维码$.post(".php/mobile/KF/buildQrcode",{str:rand},function(result){console.log(result);var obj = JSON.parse(result);var sign = obj.scene_str;var src = ""+obj.src;$('#wxewm').attr('src',src);$('input[name=sign]').val(sign);});//轮询扫码后的登录t2 = window.setInterval("login()",1000);//使用字符串执行方法 //window.clearTimeout(t1);//去掉定时器 setTimeout("end()",30000);})function end(){ //如果超过一定时间不扫码,停止轮询,提示过期$('#wxewm').hide(); //隐藏二维码window.clearTimeout(t2); //停止轮询$('#notice').show(); //提示二维码过期 }function login(){ //不停发送请求,获取扫码人的信息,如果扫码了获取信息停止轮询,var code =$('input[name=sign]').val();$.post(".php/mobile/KF/pass",{str:code},function(result){console.log(result);var obj = JSON.parse(result);var user_name = obj.user_name;var pass = obj.pass;if(pass){window.clearTimeout(t2);window.location.href=""; //跳转到登录后的页面}});}</script>
后端
php用file_get_contents(“php://input”)或者$HTTP_RAW_POST_DATA可以接收xml数据
public function get_ACCESS_TOKEN() //获取token
{
$appid= ‘wx8feca7bba41accc4’;
$secret='beca81f0da48dc92f9610dc21648fec6';$data = json_decode(file_get_contents("=client_credential&appid=$appid&secret=$secret")) ;return $data->access_token;
}
public function buildQrcode() //生成带参数二维码
{ $str = $_POST['str'];$access_token=$this->get_ACCESS_TOKEN();// scene_id 参数$data = '{ "expire_seconds": 604800, "action_name": "QR_SCENE", "action_info": { "scene": { "scene_id":'.$str.'} } }'; $url = "=".$access_token;$obj = json_decode(httpRequest($url, 'POST', $data));$ticket=$obj->ticket;return json_encode(['src'=>"?ticket=$ticket",'scene_str'=>$str]);
}
public function kf_login() //扫码客服
{//$GLOBALS["HTTP_RAW_POST_DATA"]; //这个用不了了;换成下面那个$postStr = file_get_contents("php://input");$postObj = json_decode(json_encode(simplexml_load_string($postStr, 'SimpleXMLElement', LIBXML_NOCDATA)),true);$openid = $postObj['FromUserName'];$EventKey = $postObj['EventKey'];$user=M('sms_log')->field('id')->where(['openid'=>$openid])->find();if(!$user['id']){$id = M('sms_log')->add(['openid'=>$openid]);$Login=new Login();$pass=$Login->get_sign('kf'.$id);M('sms_log')->where(['id'=>$id])->save(['pass'=>$pass,'code'=>$EventKey]);}else{M('sms_log')->where(['id'=>$user['id']])->save(['code'=>$EventKey]);}
}public function pass(){ //登录$str = $_POST['str'];$user=M('sms_log')->field('id,pass')->where(['code'=>$str])->find();M('sms_log')->where(['code'=>$str])->save(['code'=>'']); //每次登录后清空参数,避免出现重复return json_encode(['user_name'=>'kf'.$user['id'],'pass'=>$user['pass']]);
}
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利用微信公共号的带参数二维码做(扫码登录)
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