php版微信自动登录并获取昵称的方法

本文实例讲述了php版微信自动登录并获取昵称的方法。分享给大家供大家参考，具体如下：

微信自动登录并获取昵称是可以通过api接口来获取的也是通过微信开放的接口来实现了，下面我们一起来看一个例子

仅记录：微信获取昵称自动登录

经过反复几次验证，发现我这个方法有缺陷：

微信内 未关注进入网站，无法获得昵称。

关注后用我这个方法可以获得昵称。

是否是因为第一次生成openid 所以还未生成昵称？待测试.

/**
* 获取当前页面完整URL地址
*/
function get_url() {
$sys_protocal = isset($_SERVER["SERVER_PORT"]) && $_SERVER["SERVER_PORT"] == "443" ? "https://" : "http://";
$php_self = $_SERVER["PHP_SELF"] ? $_SERVER["PHP_SELF"] : $_SERVER["SCRIPT_NAME"];
$path_info = isset($_SERVER["PATH_INFO"]) ? $_SERVER["PATH_INFO"] : "";
$relate_url = isset($_SERVER["REQUEST_URI"]) ? $_SERVER["REQUEST_URI"] : $php_self.(isset($_SERVER["QUERY_STRING"]) ? "?".$_SERVER["QUERY_STRING"] : $path_info);
return $sys_protocal.(isset($_SERVER["HTTP_HOST"]) ? $_SERVER["HTTP_HOST"] : "").$relate_url;
}
$wxch_config = $db -> getRow("SELECT * FROM `ecs_weixin_config` WHERE `id` = 1");
$appid = $wxch_config["appid"];
$appsecret = $wxch_config["appsecret"];
$APPID = $appid;
$SCRETID =$appsecret;
if(!$_SESSION["user_id"] && strpos($_SERVER["HTTP_USER_AGENT"], "MicroMessenger") !== false){
if (!isset($_GET["code"]))
{
$backurl = get_url();
//$url = $jsApi->createOauthUrlForCode($backurl);
$url = "https://open.weixin.qq.com/connect/oauth2/authorize?appid=".$APPID."&redirect_uri=".urlencode($backurl)."&response_type=code&scope=snsapi_base&state=123#wechat_redirect";
//echo $url;
Header("Location: $url");
}else
{
//获取code码，以获取openid
$code = $_GET["code"];
$url = "https://api.weixin.qq.com/sns/oauth2/access_token?appid=".$APPID."&secret=".$SCRETID."&code=".$code."&grant_type=authorization_code";
$re = curl_get_contents1($url);
$rearr = json_decode($re,true);
$openid = $rearr["openid"];
//var_dump($rearr);
//$jsApi->setCode($code);
//$openid = $jsApi->getOpenid();
$user_name = $db->getOne("select uname from ecs_weixin_user where wxid = "{$openid}"");
if($openid && !$user_name){ //注册进入
$passw = md5("shanmao.me".rand(1,18650144002));
$wxch_user_sql = "INSERT INTO `ecs_weixin_user` (`wxid`,`setp`) VALUES ("$openid","3")";
$db -> query($wxch_user_sql);
$ecs_user_id = $db -> insert_id();
if($ecs_user_id<=0){
exit("error get insert_id");
}
$url3 = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=".$APPID."&secret=".$SCRETID;
$re3 = curl_get_contents1($url3);
$re3arr = json_decode($re3,true);
$token = $re3arr["access_token"];
$url2 = "https://api.weixin.qq.com/cgi-bin/user/info?access_token=".$token."&openid=".$openid."&lang=zh_CN";
$re2 = curl_get_contents1($url2);
$rearr2 = json_decode($re2,true);
$uc_username = $rearr2["nickname"]?$rearr2["nickname"]: "doubag" . $ecs_user_id;
$time = gmtime();
$user_sql = "INSERT INTO `ecs_users` (`user_name`,`password`,`reg_time`) VALUES ("$uc_username","$passw","$time")";
$db -> query($user_sql);
$uc_update = "UPDATE ecs_weixin_user SET `uname` = "$uc_username" WHERE `uid` = "$ecs_user_id"";
$db -> query($uc_update);
$user->set_session($uc_username);
$user->set_cookie($uc_username,1);
update_user_info();
/*
$up_uid = get_affiliate();
if($up_uid>0){
$sql = "UPDATE ecs_users SET parent_id = " . $up_uid . " WHERE user_id = " . $ecs_user_id;
$db ->query($sql);
header("Location: user.php?newuser=1");
}*/
}else{
$user->set_session($user_name);
$user->set_cookie($user_name,1);
update_user_info();
}
//setcookie("sopenid",$openid,time()+864000,"/");
}
}
//var_dump($openid);
function curl_get_contents1($url) {
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_TIMEOUT, 2);
curl_setopt($ch, CURLOPT_USERAGENT, "IE 6.0");
curl_setopt($ch, CURLOPT_REFERER, "");
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
$r = curl_exec($ch);
curl_close($ch);
return $r;
}

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希望本文所述对大家PHP程序设计有所帮助。