thinkphp5框架结合mysql实现微信登录和自定义分享链接与图文功能示例

function curlHtml($url){
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
$output = curl_exec($ch);
//释放curl句柄
curl_close($ch);
return $output;
}
class Wechat
{
public $errmsg;
//微信登录获取用户信息
public function getUserInfo() {
//1.准备scope为snsapi_base网页授权页面
$redirect_url = config('system.site_url') . $_SERVER["REQUEST_URI"];
$baseurl = urlencode($redirect_url);
$snsapi_base_url = 'https://open.weixin.qq.com/connect/oauth2/authorize?appid=' . config('system.appid') . '&redirect_uri=' . $baseurl . '&response_type=code&scope=snsapi_base&state=STATE#wechat_redirect';
//2.静默授权,获取code
//页面跳转至redirect_uri/?code=CODE&state=STATE
$code = input('code');
if (!isset($code) || empty($code)) {
header('Location:' . $snsapi_base_url);exit(0);
}
//3.通过code换取网页授权access_token和openID
$curl = 'https://api.weixin.qq.com/sns/oauth2/access_token?appid=' . config('system.appid') . '&secret=' . config('system.appsecret') . '&code=' . $code . '&grant_type=authorization_code';
$content = curlHtml($curl);
$result = json_decode($content, true);
if(!isset($result['openid'])) {
$this- errmsg = $result['errmsg'];return false;
}
$openid = $result['openid'];
$userinfo = $this- getUserByOpenid($openid);
return $userinfo;
}
private function getUserByOpenid($openid) {
//获取access_token
$token_info  = $this- curlGetWxAccessToken();
$access_token = $token_info['value'];
//通过OpenID来获取用户基本信息
$url = "https://api.weixin.qq.com/cgi-bin/user/info?access_token=".$access_token."&openid=".$openid."&lang=zh_CN";
$content = curlHtml($url);
$result = json_decode($content, true);
return $result;
}
/**
* [wxShare 微信分享]
* @param [type] $url [description]
* @return [type]   [description]
*/
public function wxShare()
{
$noncestr = uniqid();
$timestamp = time();
$url = config('system.site_url') . $_SERVER["REQUEST_URI"];
// $redis   = new Redis;
// $ticket_key = 'wx_ticket';
// $ticket   = $redis- get($ticket_key);
// if (!$ticket) {
//   $ticket = $this- getJsapiTicket();
//   $redis- set($ticket_key, $ticket);
//   $redis- expire($ticket_key, 7200);
// }
$ticket = $this- getJsapiTicket();
if ($ticket) {
$str     = 'jsapi_ticket=' . $ticket . '&noncestr=' . $noncestr . '&timestamp=' . $timestamp . '&url=' . $url;
$signature  = sha1($str);
$return_data = [
'noncestr' =  $noncestr,
'timestamp' =  $timestamp,
'signature' =  $signature,
'appid'   =  config('system.appid'),
'link'   =  $url,
];
return $return_data;
}
}
private function getJsapiTicket()
{
$map['keyname'] = 'Ticket';
$map['modifytime'] = array('GT', time() - 7200);
$return       = WxTokenModel::getOne('*', $map);
if ($return) {
return $return['value'];
} else {
$token_info  = $this- curlGetWxAccessToken();
$access_token = $token_info['value'];
$url     = 'https://api.weixin.qq.com/cgi-bin/ticket/getticket?access_token=' . $access_token . '&type=jsapi';
$output    = curlHtml($url);
$data     = json_decode($output, true);
if (isset($data['errcode']) && $data['errcode'] == 0) {
$condition['keyname'] = 'Ticket';
$update_data['modifytime'] = time();
$update_data['value']   = $data['ticket'];
$up_result      = WxTokenModel::updateData($condition, $update_data);
if ($up_result !== false) {
return $data['ticket'];
}
}
}
return false;
}
private function curlGetWxAccessToken()
{
$map['keyname'] = 'AccessToken';
$map['modifytime'] = array('GT', time() - 7200);
$return = WxTokenModel::getOne('*', $map);
if ($return) {
return $return;
} else {
$url  = 'https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=' . config('system.appid') . '&secret=' . config('system.appsecret');
$output = curlHtml($url);
$data = json_decode($output, true);
if ($data && isset($data['access_token'])) {
$condition['keyname'] = 'AccessToken';
$update_data['modifytime'] = time();
$update_data['value'] = $data['access_token'];
$up_result      = WxTokenModel::updateData($condition, $update_data);
if ($up_result !== false) {
return $update_data;
}
}
}
return false;
}
}

<script type="text/javascript" src="http://res.wx.qq.com/open/js/jweixin-1.2.0.js" </script 
<script 
wx.config({
debug: false,
appId: '{$appid}', // 必填，公众号的唯一标识
timestamp: '{$timestamp}', // 必填，生成签名的时间戳
nonceStr: '{$noncestr}', // 必填，生成签名的随机串
signature: '{$signature}',// 必填，签名，见附录1
jsApiList: ['onMenuShareTimeline'] // 必填，需要使用的JS接口列表，所有JS接口列表见附录2
});
wx.ready(function () {
// 分享到朋友圈
wx.onMenuShareTimeline({
title: '', // 名
link: '{$link}', // 地址
imgUrl: '', // 分享的图标
success: function () {
// 用户确认分享后执行的回调函数
},
cancel: function () {
// 用户取消分享后执行的回调函数
}
});
});
</script