前端(index.html)：
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>測試微信掃碼登陸</title>
</head>
<body>
<img id="qrcode" src="" />
<h1 id="code"></h1>
<p style="font-weight: 600">使用您的應用測試？</p>
<p>您的AppID：<input type="text" id="appid" /></p>
<p>開放平臺設置的授權回調域(以http/https開頭)：<input type="text" id="redirectUri" /></p>
<p><input type="button" value="測試" id="test" /></p>
<a href="https://github.com/yi-ge/weixin-login-php"><img style="position: absolute; top: 0; right: 0; border: 0;" src="" alt="Fork me on GitHub"></a>
<script src="https://cdn.staticfile.org/jquery/3.3.1/jquery.min.js"></script>
<script>
function GetQueryString(name) {
var reg = new RegExp("(^|&)"+ name +"=([^&]*)(&|$)");
var r = window.location.search.substr(1).match(reg);
if(r!=null)return unescape(r[2]); return '';
}
$(function () {
var api_url = "http://www.xxx.com/weixin.php";
var getCode = function (uuid, last) {
$.ajax({
type: "GET",
url: api_url + "&uuid=" + uuid + (last ? '&last=' + last : ''),
dataType: "json",
cache: !1,
timeout: 6e4,
xhrFields:{
withCredentials:true
},
success: function (data) {
console.log(data)
data = data.content
if (data.status === 405) {
$('#code').text('登陸成功，code = ' + data.result.code)
} else if (data.status === 404) {
$('#code').text(data.msg.title + ', ' + data.msg.content)
getCode(uuid, data.result.wxErrCode)
} else if (data.status === 403) {
$('#code').text(data.msg.title + ', ' + data.msg.content)
getCode(uuid, data.result.wxErrCode)
} else if (data.status === 500) {
getUUID()
} else {
setTimeout(function () {
getCode(uuid)
}, 2000)
}
},
error: function () {
setTimeout(function () {
getCode(uuid)
}, 2000)
}
})
}
var getUUID = function (uuid) {
$.ajax({
type: "GET",
url: api_url,
dataType: "json",
cache: !1,
timeout: 6e4,
xhrFields:{
withCredentials:true
},
success: function (data) {
data = data.content
if (data.status === 1) {
var uuid = data.result.wxUUID
$('#qrcode').attr('src', data.result.imgData)
getCode(uuid)
} else {
// setTimeout(function () {
// window.location.reload();
// }, 2000)
}
},
error: function () {
// setTimeout(function () {
// window.location.reload();
// }, 2000)
}
})
}
$("#appid").val(GetQueryString("appid"))
$("#redirectUri").val(GetQueryString("redirect_uri"))
$("#test").click(function () {
window.location.href = window.location.origin + "/index.html?appid=" + $("#appid").val() + "&redirect_uri=" + $("#redirectUri").val();
})
getUUID()
});
</script>
</body>
</html>
後端(weixin.php)：
<?php
header('Content-Type: application/json; charset=utf-8');
header('Access-Control-Allow-Headers: Authorization, DNT, User-Agent, Keep-Alive, Origin, X-Requested-With, Content-Type, Accept, x-clientid');
header('Access-Control-Allow-Methods: PUT, POST, GET, DELETE, OPTIONS');
header('Access-Control-Allow-Origin: *');
if (!empty($_GET['uuid'])) {
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, 'https://long.open.weixin.qq.com/connect/l/qrconnect?uuid=' . $_GET['uuid'] . (empty($_GET['last']) ? '' : '&last=' . $_GET['last']));
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 60);
curl_setopt($ch, CURLOPT_HTTPHEADER, array('Cache-Control: no-cache', 'User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3522.0 Safari/537.36'));
$output = curl_exec($ch);
curl_close($ch);
$preg = '/window.wx_errcode=(.*?);w/i';
$preg1 = "/window.wx_code='(.*?)';/i";
preg_match_all($preg, $output, $res);
$wxErrCode = $res[1][0];
switch ($wxErrCode) {
case 405:
preg_match_all($preg1, $output, $res);
$wxCode = $res[1][0];
$r = array(
'status' => 405,
'msg' => '登陸成功',
'result' => array(
'code' => $wxCode,
),
);
break;
case 404:
$r = array(
'status' => 404,
'msg' => array(
'title' => '登陸成功',
'content' => '請在微信中點擊確認即可登錄',
),
'result' => array(
'wxErrCode' => $wxErrCode,
),
);
break;
case 403:
$r = array(
'status' => 403,
'msg' => array(
'title' => '您已取消此次登錄',
'content' => '您可再次掃描登錄，或關閉窗口',
),
'result' => array(
'wxErrCode' => $wxErrCode,
),
);
break;
case 402:
case 500:
$r = array(
'status' => 500,
'msg' => '需要重新獲取uuid',
);
break;
case 408:
$r = array(
'status' => 408,
'msg' => '需要再次請求',
);
break;
}
echo json_encode($r);
} else {
$ch = curl_init();
$appid = empty($_GET['appid']) ? 'wx827225356b689e24' : $_GET['appid'];
$redirect_uri = empty($_GET['redirect_uri']) ? 'https://qq.jd.com/' : $_GET['redirect_uri'];
$redirect_uri = urlencode(iconv('gb2312', 'UTF-8', $redirect_uri));
curl_setopt($ch, CURLOPT_URL, 'https://open.weixin.qq.com/connect/qrconnect?appid=' . $appid . '&scope=snsapi_login&redirect_uri=' . $redirect_uri . '&state=&login_type=jssdk&self_redirect=default');
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 60);
curl_setopt($ch, CURLOPT_HTTPHEADER, array('Cache-Control: no-cache', 'User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3522.0 Safari/537.36'));
$output = curl_exec($ch);
curl_close($ch);
// var_dump($output);die;
$preg = '/src="\/connect\/qrcode\/(.*?)" \/>/i';
preg_match_all($preg, $output, $res);
$uuid = $res[1][0];
if (isset($_GET['img'])) { // 不推薦 - 如果設置了img參數，則返回圖片的下載地址，但此地址無法解決Chrome70不信任騰訊域名證書的問題
$r = array('status' => 1, 'result' => array('wxUUID' => $uuid, 'imgURL' => 'https://open.weixin.qq.com/connect/qrcode/' . $uuid));
} else {
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, 'https://open.weixin.qq.com/connect/qrcode/' . $uuid);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 60);
curl_setopt($ch, CURLOPT_HTTPHEADER, array('Cache-Control: no-cache', 'User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3522.0 Safari/537.36'));
$output = curl_exec($ch);
curl_close($ch);
$r = array('status' => 1, 'result' => array('wxUUID' => $uuid, 'imgData' => 'data:image/jpeg;base64,' . base64_encode($output)));
}
echo json_encode($r);
}