1.登陆的html页面代码
<a href="weixin.redirect_uri">微信登陆</a>
2.跳转到的控制器方法代码
CJUL是常量，就是你在开放平台上注册的重定向网址
跳换到后重定向到的地址是微信的一个重定向地址
带了你在开放平台上注册的网址redirect_uri和appid 并且scope为snsapi_login
| 参数 | 是否必须 | 说明 |
|---|---|---|
| appid | 是 | 应用唯一标识 |
| redirect_uri | 是 | 重定向地址，需要进行UrlEncode |
| response_type | 是 | 填code |
| scope | 是 | 应用授权作用域，拥有多个作用域用逗号（,）分隔，网页应用目前仅填写snsapi_login即可 |
| state | 否 | 用于保持请求和回调的状态，授权请求后原样带回给第三方。该参数可用于防止csrf攻击（跨站请求伪造攻击），建议第三方带上该参数，可设置为简单的随机数加session进行校验 |
class PhoneController extends CommonController{ //加载首页 public function Index(){ //通过授权跳转网页进入 if(isset($_GET['code'])){ $code = $_GET['code']; //通过code换取网页授权access_token $access_token = $this->get_code_access_token($code); //检验授权凭证（access_token）是否有效 $data = $this->checkAvail($access_token['access_token'],$access_token['openid']); if($data['errcode'] != '0' || $data['error_msg'] != 'ok'){ //刷新access_token $access_token = $this->refresh_access_token($access_token['refresh_token']); } //得到拉取用户信息(需scope为 snsapi_userinfo) $userinfo = $this->get_user_info($access_token['access_token'],$access_token['openid']); require 'view/index.html'; }elseif(isset($_GET['page'])){ //网页端入口 require 'view/index.html'; }else{ echo "NO CODE"; } } //跳转到微信的认证页 public function redirect_uri(){ $url = $this->get_authorize_url(CJURL,'1'); header('location:'.$url); } }
3.调用的底层代码
<?php class CommonController{ //http get public function httpRequest($url){ $ch = curl_init(); curl_setopt($ch, CURLOPT_URL, $url); curl_setopt($ch,CURLOPT_SSL_VERIFYPEER,false); curl_setopt($ch,CURLOPT_SSL_VERIFYHOST,false); curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); $output = curl_exec($ch); if($output == false){ return 'curl error:'.curl_error($ch); } curl_close($ch); return $output; } //curl获取参数 //https 中的 get 和 post public function https_request($url,$data=null){ $curl = curl_init(); curl_setopt($curl,CURLOPT_URL,$url); curl_setopt($curl,CURLOPT_SSL_VERIFYPEER,false); curl_setopt($curl,CURLOPT_SSL_VERIFYHOST,false); //不为空，使用post传参数，否则使用get if($data){ curl_setopt($curl,CURLOPT_POST,1); curl_setopt($curl,CURLOPT_POSTFIELDS,$data); } curl_setopt($curl,CURLOPT_RETURNTRANSFER,1); $output = curl_exec($curl); curl_close($curl); return $output; } //获取接口票据access_token public function get_token(){ $url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=".APPID."&secret=".APPSECRET; $json = $this->https_request($url); $arr = json_decode($json,true); return $arr['access_token']; } /*获取授权后重定向的回调链接地址，请使用urlencode对链接进行处理 * @param string $redirect_uri * @param string $state **/ public function get_authorize_url($redirect_uri = '', $state = ''){ $redirect_uri = urlencode($redirect_uri); return "https://open.weixin.qq.com/connect/oauth2/authorize?appid=".APPID."&redirect_uri={$redirect_uri}&response_type=code&scope=snsapi_base&state={$state}#wechat_redirect"; } /** *加载网页授权通过code获取access_token * * @param string $code **/ public function get_code_access_token($code){ //第一步：用户同意授权，获取code // 第二步：通过code换取网页授权access_token,与接口票据不一样 $access_token_url = "https://api.weixin.qq.com/sns/oauth2/access_token?appid=".APPID."&secret=".APPSECRET."&code={$code}&grant_type=authorization_code"; $access_token = $this->https_request($access_token_url); $arr = json_decode($access_token,true); return $arr; } /** * 刷新access_token（如果需要） * **/ public function refresh_access_token($refresh_token){ //三步：刷新access_token（如果需要） $refresh_url = "https://api.weixin.qq.com/sns/oauth2/refresh_token?appid=".APPID."&grant_type=refresh_token&refresh_token={$refresh_token}"; $access_token = $this->https_request($refresh_url); return json_decode($access_token,true); } /** * 获取授权后的微信用户信息 * * @param string $access_token * @param string $open_id **/ public function get_user_info($access_token = '', $open_id = ''){ // 第四步：拉取用户信息(需scope为 snsapi_userinfo) if($access_token && $open_id){ $info_url = "https://api.weixin.qq.com/sns/userinfo?access_token={$access_token}&openid={$open_id}&lang=zh_CN"; $info_data = $this->https_request($info_url); return json_decode($info_data, TRUE); } return FALSE; } /** *检验授权凭证（access_token）是否有效 * @param string $access_token * @param string $open_id **/ public function checkAvail($access_token='',$openid=''){ if($access_token && $open_id){ $avail_url = "https://api.weixin.qq.com/sns/auth?access_token={$access_token}&openid={$openid}"; $avail_data = $this->https_request($avail_url); return json_decode($avail_data, TRUE); } return FALSE; } //获取自定义菜单创建接口 public function setcustomMenu(){ $access_token = $this->get_token(); $menuurl = "https://api.weixin.qq.com/cgi-bin/menu/create?access_token={$access_token}"; $jsonmenu = '{ "button":[ { "type":"view", "name":"抽奖", "url":"http://akira.weixin-sandbox.ciicgat.com/index.php?c=Phone&a=Index&page=Page" }, { "type":"click", "name":"赞一下", "key":"点赞" }, { "name":"上网", "sub_button":[ { "type":"view", "name":"搜搜", "url":"http://www.soso.com/" }, { "type":"view", "name":"腾讯", "url":"http://v.qq.com/" }, { "type":"view", "name":"百度", "url":"http://www.baidu.com/" }] }] }'; //在直接访问接口的时候已经改变了微站上面的信息 $result = $this->https_request($menuurl,$jsonmenu); var_dump($result); } /** *openid *用户说的内容 *获取和你聊天的用户的基本信息形成列表 **/ public function getUserInfo($openid,$text){ $access_token = $this->get_token(); //http请求方式:GET $url = "https://api.weixin.qq.com/cgi-bin/user/info?access_token={$access_token}&openid={$openid}&lang=zh_CN"; //请求获取用户信息的接口，返回这个openid对应的用户信息，json格式 $jsoninfo = $this->httpRequest($url); //将json转为php数组 $user = json_decode($jsoninfo,true); $this->insertuser($user); $this->insertmessage($openid,$text,0,'text'); } /* *将用户的数据写入数据库 */ public function insertuser($arr){ $user = new Model('user'); $user->ctime = $arr['subscribe_time']; $user->add($arr); } /** *第一个参数: $openid 用户的编号 *第二个参数: $text 用户消息和公众号数据标记 1 表示公众号 0 表示用户消息 **/ public function insertmessage($openid,$text,$who,$mtype="text"){ $message = new Model('message'); $message->openid = $openid; $message->mess = $text; $message->who = $who; $message->utime = time(); $message->mtype = $mtype; $message->add(); $sql = "upadte user set utime=".time()." where openid = '{$openid}'"; $user = new Model('user'); $user->query($sql); } //获取带参数的二维码的过程包括两步，首先创建二维码ticket，然后凭借ticket到指定URL换取二维码 /** *微信获取二维码ticket *@param string $type *@param string $time **/ public function getTicket($type="temporary",$time="604800"){ /* http请求方式: POST URL: https://api.weixin.qq.com/cgi-bin/qrcode/create?access_token=TOKEN POST数据格式：json 临时二维码请求说明 POST数据例子：{"expire_seconds": 604800, "action_name": "QR_SCENE", "action_info": {"scene": {"scene_id": 123}}} 永久二维码请求说明 POST数据例子：{"action_name": "QR_LIMIT_SCENE", "action_info": {"scene": {"scene_id": 123}}} 或者也可以使用以下POST数据创建字符串形式的二维码参数： {"action_name": "QR_LIMIT_STR_SCENE", "action_info": {"scene": {"scene_str": "123"}}} */ if((int)($time) > 604800){ $time = 604800; } //获取token $token = $this->get_token(); //临时 $temporary_qrcode = '{"expire_seconds": '.$time.', "action_name": "QR_SCENE", "action_info": {"scene": {"scene_id": 123}}}'; //永久 $permanent_qrcode = '{"action_name": "QR_LIMIT_SCENE", "action_info": {"scene": {"scene_id": 123}}}'; //永久字符串 $permanent_str_qrcode = '{"action_name": "QR_LIMIT_STR_SCENE", "action_info": {"scene": {"scene_str": 123}}}'; //获取类型判定 $code = $type.'_qrcode'; $qrcode = $$code; //请求ticket $ticket_url = "https://api.weixin.qq.com/cgi-bin/qrcode/create?access_token={$token}"; $ticket = $this->https_request($ticket_url,$qrcode); return $ticket; } /** *凭借ticket到指定URL换取二维码 **/ public function getQrcode(){ //本接口无须登录态即可调用 TICKET进行UrlEncode // HTTP GET请求（请使用https协议） // https://mp.weixin.qq.com/cgi-bin/showqrcode?ticket=TICKET $ticket = json_decode($this->getTicket(),true); $qrcode_url = "https://mp.weixin.qq.com/cgi-bin/showqrcode?ticket=".urlencode($ticket['ticket']); echo $qrcode_url; $qrcode = $this->https_request($qrcode_url); // header(""); } /* * 微信不接收u***格式的json内容需要对json字符串处理 * 仅支持发送text消息，其他类型消息自己添加代码 * @param string msgtype * @param array * @return string */ function my_json_encode($type, $p){ if (PHP_VERSION >= '5.4'){ $str = json_encode($p, JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE); } else{ switch ($type){ case 'text': isset($p['text']['content']) && ($p['text']['content'] = urlencode($p['text']['content'])); break; } $str = urldecode(json_encode($p)); } return $str; } //中文分词函数,只要传一句话，就可以分词出来 public function fci($text){ $text = iconv('UTF-8','GBK//IGNORE',$text); $text = urlencode($text); $result = file_get_contents("http://akira.weixin-sandbox.ciicgat.com/index.php?w=".$text); $result = iconv("GBK","UTF-8//IGNORE",$result); return explode(" ",$result); } } ?>