1.必须配置回调函数(在微信开发者管理中)

2.用户授权并获取code

在域名(前面配置的回调域名)根目录下，新建一个文件，命名为oauth.php(名字随便你取，下面的redirect_uri做相应修改即可)

url: https://open.weixin.qq.com/connect/oauth2/authorize?appid=wx3baef8c48cce7fb3&redirect_uri=http%3a%2f%2fh5.tybxkj.cc%2foauth.php&response_type=code&scope=snsapi_userinfo&state=1#wechat_redirect

3.使用code换取access_token

利用get请求函数访问url

https://api.weixin.qq.com/sns/oauth2/access_token?appid=wx3baef8c48cce7fb3&secret=4ca91b29cf3370b2ad311565344b598a&code=$coded&grant_type=authorization_code

4.通过access_token、openid获取用户信息

url: https://api.weixin.qq.com/sns/userinfo?access_token=$acctke&openid=$appid

5.通过单击菜单带参数(state)判断用户跳转链接

查询数据库中有无注册记录

$pdcz = $db->get_one("select * from destoon_member where destoon_member.oppid=‘$appid‘");

有则直接登陆

$names = $pdcz[‘username‘];

$pasmd = $pdcz[‘password‘].$pdcz[‘passsalt‘];

$do = new member;

$user = $do->login($names,$pasmd,86300*30,true); //调用框架内部登陆

// 重定向

if($user){

header("Location: http://h5.tybxkj.cc/mobile/news/");

}

无则注册并登陆

$do = new member;

$data[‘regid‘] = ‘5‘;

$data[‘company‘] = null;

$data[‘username‘] = $nameu;

$data[‘password‘] = $pass;

$data[‘cpassword‘] = $pass;

$data[‘passport‘] = $nameu;

$data[‘truename‘] = $truenme;

$data[‘groupid‘] = ‘5‘;

$data[‘catids‘] = ‘111‘;

$data[‘catid‘] = ‘2‘;

$data[‘banner‘] = ‘11‘;

$data[‘thumb‘] =‘111‘ ;

$data[‘introduce‘] = ‘22‘;

$data[‘content‘] = ‘333‘;

$data[‘edittime‘] = 0;

$data[‘inviter‘] = ‘1111‘;

$data[‘oppid‘] = $appid;

$data[‘wxhead‘] = $imgtx;

$user = $do->add($data); //注册方法

if($user){

$goa = $do->login($data[‘username‘],$data[‘password‘],86300*30,true);

if($goa){

header("Location: http://h5.tybxkj.cc/mobile/news/"); //重定向

}

}

6.参考函数

//get请求

function curl_get_https($url){

$curl = curl_init(); // 启动一个CURL会话

curl_setopt($curl, CURLOPT_URL, $url);

curl_setopt($curl, CURLOPT_HEADER, 0);

curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);

curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false); // 跳过证书检查

curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, false); // 从证书中检查SSL加密算法是否存在

$tmpInfo = curl_exec($curl); //返回api的json对象

//关闭URL请求

curl_close($curl);

return $tmpInfo; //返回json对象

}

代码部分

require ‘common.inc.php‘;

$module ="member";

require DT_ROOT.‘/module/‘.$module.‘/common.inc.php‘;

require DT_ROOT.‘/include/post.func.php‘;

require DT_ROOT.‘/module/‘.$module.‘/member.class.php‘;

$coded=$_GET[‘code‘];

$statea=intval($_GET[‘state‘]); //获取到code和state参数

$url="https://api.weixin.qq.com/sns/oauth2/access_token?appid=wx3baef8c48cce7fb3&secret=4ca91b29cf3370b2ad311565344b598a&code=$coded&grant_type=authorization_code";

$json = curl_get_https($url); //获取access_token和apenid

$arre = json_decode($json,true);

$acctke = $arre[‘access_token‘];

$appid = $arre[‘openid‘]; //opid

$urlto = "https://api.weixin.qq.com/sns/userinfo?access_token=$acctke&openid=$appid"; //获取用户信息

$jsonto = curl_get_https($urlto);

$arreto = json_decode($jsonto,true);

$truenme = $arreto[‘nickname‘]; // 用户昵称

$imgtx = $arreto[‘headimgurl‘]; // 头像

if ($statea===1){

$pdcza = $db->get_one("select * from destoon_member where destoon_member.oppid=‘$appid‘");

if($pdcza){

$namesa = $pdcza[‘username‘];

$pasmda = $pdcza[‘password‘].$pdcza[‘passsalt‘];

$do = new member;

$user = $do->login($namesa,$pasmda,86300*30, true);

// 重定向

header("Location: http://h5.tybxkj.cc/mobile/news/");

}else{

$datac = inParaMeter($appid,$truenme,$imgtx);

$do = new member;

$usera = $do->add($datac);

$goaa = $do->login($datac[‘username‘],$datac[‘password‘],86300*30,true);

header("Location: http://h5.tybxkj.cc/mobile/news/");

}

}

if ($statea===2){

$pdczb = $db->get_one("select * from destoon_member where destoon_member.oppid=‘$appid‘");

if($pdczb){

$namesb = $pdczb[‘username‘];

$pasdfb = $pdczb[‘password‘].$pdczb[‘passsalt‘];

$do = new member;

$user = $do->login($namesb,$pasdfb,86300*30,true);

// 重定向

header("Location: http://h5.tybxkj.cc/mobile/member/map.php");

}else{

$datac = inParaMeter($appid,$truenme,$imgtx);

$do = new member;

$userb = $do->add($datac);

$goab = $do->login($datac[‘username‘],$datac[‘password‘],86300*30,true);

header("Location: http://h5.tybxkj.cc/mobile/member/map.php");

}

}

if ($statea===3){

$pdczc = $db->get_one("select * from destoon_member where destoon_member.oppid=‘$appid‘");

if($pdczc){

$namesc = $pdczc[‘username‘];

$pasdfc = $pdczc[‘password‘].$pdczc[‘passsalt‘];

$do = new member;

$user = $do->login($namesc,$pasdfc,86300*30,true);

// 重定向

header("Location: http://h5.tybxkj.cc/mobile/company/");

}else{

$datac = inParaMeter($appid,$truenme,$imgtx);

$do = new member;

$userc = $do->add($datac);

$goac = $do->login($datac[‘username‘],$datac[‘password‘],86300*30,true);

header("Location: http://h5.tybxkj.cc/mobile/company/");

}

}

//传入参数

function inParaMeter($appid,$truenme,$imgtx){

$wxxas = mt_rand(10000,999999);

$nameu = ‘wx‘.$wxxas; // 随机用户名

$randpas = mt_rand(10000,999999);

$randeps = mt_rand(10000,999999);

$passwordmdf = $randpas.$randeps; // 密码

$do = new member;

$datac = array();

$datac[‘regid‘] = ‘5‘;

$datac[‘company‘] = null;

$datac[‘username‘] = $nameu;

$datac[‘password‘] = $passwordmdf;

$datac[‘cpassword‘] = $passwordmdf;

$datac[‘passport‘] = $nameu;

$datac[‘truename‘] = $truenme;

$datac[‘groupid‘] = ‘5‘;

$datac[‘catids‘] = ‘111‘;

$datac[‘catid‘] = ‘2‘;

$datac[‘banner‘] = ‘11‘;

$datac[‘thumb‘] =‘111‘ ;

$datac[‘introduce‘] = ‘22‘;

$datac[‘content‘] = ‘333‘;

$datac[‘edittime‘] = 0;

$datac[‘inviter‘] = ‘1111‘;

$datac[‘oppid‘] = $appid;

$datac[‘wxhead‘] = $imgtx;

return $datac;

}

//get请求

function curl_get_https($url){

$curl = curl_init(); // 启动一个CURL会话

curl_setopt($curl, CURLOPT_URL, $url);

curl_setopt($curl, CURLOPT_HEADER, 0);

curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);

curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false); // 跳过证书检查

curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, false); // 从证书中检查SSL加密算法是否存在

$tmpInfo = curl_exec($curl); //返回api的json对象

//关闭URL请求

curl_close($curl);

return $tmpInfo; //返回json对象

}

?>

原文：https://www.cnblogs.com/coderj/p/9437739.html