[PHP]如何使用Face++接口开发微信公共平台的人脸识别系统

效果图如下：

具体步骤如下：

首先，先登录Face++的官网注册账号：官网链接

注册之后会获取到api_secret和api_key，这些在调用接口的时候需要用到。

然后接下来的就是使用PHP脚本调用API了。

在使用PHP开发微信公共平台的时候，推荐使用Github上的一款不错的框架：wechat-php-sdk

对于微信的常用接口做了一些封装，核心文件wechat.class.php如下：

<?php
/***    微信公众平台PHP-SDK, 官方API部分*  @author  dodge <dodgepudding@gmail.com>*  @link https://github.com/dodgepudding/wechat-php-sdk*  @version 1.2*  usage:*   $options = array(*            'token'=>'tokenaccesskey', //填写你设定的key*         'appid'=>'wxdk1234567890', //填写高级调用功能的app id*           'appsecret'=>'xxxxxxxxxxxxxxxxxxx', //填写高级调用功能的密钥*      );*  $weObj = new Wechat($options);*   $weObj->valid();*   $type = $weObj->getRev()->getRevType();*   switch($type) {*           case Wechat::MSGTYPE_TEXT:*             $weObj->text("hello, I'm wechat")->reply();*               exit;*              break;*         case Wechat::MSGTYPE_EVENT:*            ....*               break;*         case Wechat::MSGTYPE_IMAGE:*            ...*            break;*         default:*               $weObj->text("help info")->reply();*   }*   //获取菜单操作:*   $menu = $weObj->getMenu();*   //设置菜单*   $newmenu =  array(*           "button"=>*               array(*                 array('type'=>'click','name'=>'最新消息','key'=>'MENU_KEY_NEWS'),*                  array('type'=>'view','name'=>'我要搜索','url'=>'http://www.baidu.com'),*                )*          );*   $result = $weObj->createMenu($newmenu);*/
class Wechat
{const MSGTYPE_TEXT = 'text';const MSGTYPE_IMAGE = 'image';const MSGTYPE_LOCATION = 'location';const MSGTYPE_LINK = 'link';const MSGTYPE_EVENT = 'event';const MSGTYPE_MUSIC = 'music';const MSGTYPE_NEWS = 'news';const MSGTYPE_VOICE = 'voice';const MSGTYPE_VIDEO = 'video';const API_URL_PREFIX = 'https://api.weixin.qq.com/cgi-bin';const AUTH_URL = '/token?grant_type=client_credential&';const MENU_CREATE_URL = '/menu/create?';const MENU_GET_URL = '/menu/get?';const MENU_DELETE_URL = '/menu/delete?';const MEDIA_GET_URL = '/media/get?';const QRCODE_CREATE_URL='/qrcode/create?';const QR_SCENE = 0;const QR_LIMIT_SCENE = 1;const QRCODE_IMG_URL='https://mp.weixin.qq.com/cgi-bin/showqrcode?ticket=';const USER_GET_URL='/user/get?';const USER_INFO_URL='/user/info?';const GROUP_GET_URL='/groups/get?';const GROUP_CREATE_URL='/groups/create?';const GROUP_UPDATE_URL='/groups/update?';const GROUP_MEMBER_UPDATE_URL='/groups/members/update?';const CUSTOM_SEND_URL='/message/custom/send?';const OAUTH_PREFIX = 'https://open.weixin.qq.com/connect/oauth2';const OAUTH_AUTHORIZE_URL = '/authorize?';const OAUTH_TOKEN_PREFIX = 'https://api.weixin.qq.com/sns/oauth2';const OAUTH_TOKEN_URL = '/access_token?';const OAUTH_REFRESH_URL = '/refresh_token?';const OAUTH_USERINFO_URL = 'https://api.weixin.qq.com/sns/userinfo?';private $token;private $appid;private $appsecret;private $access_token;private $user_token;private $_msg;private $_funcflag = false;private $_receive;public $debug =  false;public $errCode = 40001;public $errMsg = "no access";private $_logcallback;public function __construct($options){$this->token = isset($options['token'])?$options['token']:'';$this->appid = isset($options['appid'])?$options['appid']:'';$this->appsecret = isset($options['appsecret'])?$options['appsecret']:'';$this->debug = isset($options['debug'])?$options['debug']:false;$this->_logcallback = isset($options['logcallback'])?$options['logcallback']:false;}/*** For weixin server validation */    private function checkSignature(){$signature = isset($_GET["signature"])?$_GET["signature"]:'';$timestamp = isset($_GET["timestamp"])?$_GET["timestamp"]:'';$nonce = isset($_GET["nonce"])?$_GET["nonce"]:'';$token = $this->token;$tmpArr = array($token, $timestamp, $nonce);sort($tmpArr, SORT_STRING);$tmpStr = implode( $tmpArr );$tmpStr = sha1( $tmpStr );if( $tmpStr == $signature ){return true;}else{return false;}}/*** For weixin server validation * @param bool $return 是否返回*/public function valid($return=false){$echoStr = isset($_GET["echostr"]) ? $_GET["echostr"]: '';if ($return) {if ($echoStr) {if ($this->checkSignature()) return $echoStr;elsereturn false;} else return $this->checkSignature();} else {if ($echoStr) {if ($this->checkSignature())die($echoStr);else die('no access');}  else {if ($this->checkSignature())return true;elsedie('no access');}}return false;}/*** 设置发送消息* @param array $msg 消息数组* @param bool $append 是否在原消息数组追加*/public function Message($msg = '',$append = false){if (is_null($msg)) {$this->_msg =array();}elseif (is_array($msg)) {if ($append)$this->_msg = array_merge($this->_msg,$msg);else$this->_msg = $msg;return $this->_msg;} else {return $this->_msg;}}public function setFuncFlag($flag) {$this->_funcflag = $flag;return $this;}private function log($log){if ($this->debug && function_exists($this->_logcallback)) {if (is_array($log)) $log = print_r($log,true);return call_user_func($this->_logcallback,$log);}}/*** 获取微信服务器发来的信息*/public function getRev(){if ($this->_receive) return $this;$postStr = file_get_contents("php://input");$this->log($postStr);if (!empty($postStr)) {$this->_receive = (array)simplexml_load_string($postStr, 'SimpleXMLElement', LIBXML_NOCDATA);}return $this;}/*** 获取微信服务器发来的信息*/public function getRevData(){return $this->_receive;}/*** 获取消息发送者*/public function getRevFrom() {if (isset($this->_receive['FromUserName']))return $this->_receive['FromUserName'];else return false;}/*** 获取消息接受者*/public function getRevTo() {if (isset($this->_receive['ToUserName']))return $this->_receive['ToUserName'];else return false;}/*** 获取接收消息的类型*/public function getRevType() {if (isset($this->_receive['MsgType']))return $this->_receive['MsgType'];else return false;}/*** 获取消息ID*/public function getRevID() {if (isset($this->_receive['MsgId']))return $this->_receive['MsgId'];else return false;}/*** 获取消息发送时间*/public function getRevCtime() {if (isset($this->_receive['CreateTime']))return $this->_receive['CreateTime'];else return false;}/*** 获取接收消息内容正文*/public function getRevContent(){if (isset($this->_receive['Content']))return $this->_receive['Content'];else if (isset($this->_receive['Recognition'])) //获取语音识别文字内容，需申请开通return $this->_receive['Recognition'];elsereturn false;}/*** 获取接收消息图片*/public function getRevPic(){if (isset($this->_receive['PicUrl']))return $this->_receive['PicUrl'];else return false;}/*** 获取接收消息链接*/public function getRevLink(){if (isset($this->_receive['Url'])){return array('url'=>$this->_receive['Url'],'title'=>$this->_receive['Title'],'description'=>$this->_receive['Description']);} else return false;}/*** 获取接收地理位置*/public function getRevGeo(){if (isset($this->_receive['Location_X'])){return array('x'=>$this->_receive['Location_X'],'y'=>$this->_receive['Location_Y'],'scale'=>$this->_receive['Scale'],'label'=>$this->_receive['Label']);} else return false;}/*** 获取接收事件推送*/public function getRevEvent(){if (isset($this->_receive['Event'])){return array('event'=>$this->_receive['Event'],'key'=>$this->_receive['EventKey'],);} else return false;}/*** 获取接收语言推送*/public function getRevVoice(){if (isset($this->_receive['MediaId'])){return array('mediaid'=>$this->_receive['MediaId'],'format'=>$this->_receive['Format'],);} else return false;}/*** 获取接收视频推送*/public function getRevVideo(){if (isset($this->_receive['MediaId'])){return array('mediaid'=>$this->_receive['MediaId'],'thumbmediaid'=>$this->_receive['ThumbMediaId']);} elsereturn false;}/*** 获取接收TICKET*/public function getRevTicket(){if (isset($this->_receive['Ticket'])){return $this->_receive['Ticket'];} elsereturn false;}/*** 获取二维码的场景值*/public function getRevSceneId (){if (isset($this->_receive['EventKey'])){return str_replace('qrscene_','',$this->_receive['EventKey']);} else{return false;}}public static function xmlSafeStr($str){   return '<![CDATA['.preg_replace("/[\\x00-\\x08\\x0b-\\x0c\\x0e-\\x1f]/",'',$str).']]>';   } /*** 数据XML编码* @param mixed $data 数据* @return string*/public static function data_to_xml($data) {$xml = '';foreach ($data as $key => $val) {is_numeric($key) && $key = "item id=\"$key\"";$xml    .=  "<$key>";$xml    .=  ( is_array($val) || is_object($val)) ? self::data_to_xml($val)  : self::xmlSafeStr($val);list($key, ) = explode(' ', $key);$xml    .=  "</$key>";}return $xml;}    /*** XML编码* @param mixed $data 数据* @param string $root 根节点名* @param string $item 数字索引的子节点名* @param string $attr 根节点属性* @param string $id   数字索引子节点key转换的属性名* @param string $encoding 数据编码* @return string*/public function xml_encode($data, $root='xml', $item='item', $attr='', $id='id', $encoding='utf-8') {if(is_array($attr)){$_attr = array();foreach ($attr as $key => $value) {$_attr[] = "{$key}=\"{$value}\"";}$attr = implode(' ', $_attr);}$attr   = trim($attr);$attr   = empty($attr) ? '' : " {$attr}";$xml   = "<{$root}{$attr}>";$xml   .= self::data_to_xml($data, $item, $id);$xml   .= "</{$root}>";return $xml;}/*** 设置回复消息* Examle: $obj->text('hello')->reply();* @param string $text*/public function text($text=''){$FuncFlag = $this->_funcflag ? 1 : 0;$msg = array('ToUserName' => $this->getRevFrom(),'FromUserName'=>$this->getRevTo(),'MsgType'=>self::MSGTYPE_TEXT,'Content'=>$text,'CreateTime'=>time(),'FuncFlag'=>$FuncFlag);$this->Message($msg);return $this;}/*** 设置回复音乐* @param string $title* @param string $desc* @param string $musicurl* @param string $hgmusicurl*/public function music($title,$desc,$musicurl,$hgmusicurl='') {$FuncFlag = $this->_funcflag ? 1 : 0;$msg = array('ToUserName' => $this->getRevFrom(),'FromUserName'=>$this->getRevTo(),'CreateTime'=>time(),'MsgType'=>self::MSGTYPE_MUSIC,'Music'=>array('Title'=>$title,'Description'=>$desc,'MusicUrl'=>$musicurl,'HQMusicUrl'=>$hgmusicurl),'FuncFlag'=>$FuncFlag);$this->Message($msg);return $this;}/*** 设置回复图文* @param array $newsData * 数组结构:*  array(*     [0]=>array(*        'Title'=>'msg title',*          'Description'=>'summary text',*         'PicUrl'=>'http://www.domain.com/1.jpg',*       'Url'=>'http://www.domain.com/1.html'*      ),*     [1]=>....*  )*/public function news($newsData=array()){$FuncFlag = $this->_funcflag ? 1 : 0;$count = count($newsData);$msg = array('ToUserName' => $this->getRevFrom(),'FromUserName'=>$this->getRevTo(),'MsgType'=>self::MSGTYPE_NEWS,'CreateTime'=>time(),'ArticleCount'=>$count,'Articles'=>$newsData,'FuncFlag'=>$FuncFlag);$this->Message($msg);return $this;}/*** * 回复微信服务器, 此函数支持链式操作* @example $this->text('msg tips')->reply();* @param string $msg 要发送的信息, 默认取$this->_msg* @param bool $return 是否返回信息而不抛出到浏览器 默认:否*/public function reply($msg=array(),$return = false){if (empty($msg)) $msg = $this->_msg;$xmldata=  $this->xml_encode($msg);$this->log($xmldata);if ($return)return $xmldata;elseecho $xmldata;}/*** GET 请求* @param string $url*/private function http_get($url){$oCurl = curl_init();if(stripos($url,"https://")!==FALSE){curl_setopt($oCurl, CURLOPT_SSL_VERIFYPEER, FALSE);curl_setopt($oCurl, CURLOPT_SSL_VERIFYHOST, FALSE);}curl_setopt($oCurl, CURLOPT_URL, $url);curl_setopt($oCurl, CURLOPT_RETURNTRANSFER, 1 );$sContent = curl_exec($oCurl);$aStatus = curl_getinfo($oCurl);curl_close($oCurl);if(intval($aStatus["http_code"])==200){return $sContent;}else{return false;}}/*** POST 请求* @param string $url* @param array $param* @return string content*/private function http_post($url,$param){$oCurl = curl_init();if(stripos($url,"https://")!==FALSE){curl_setopt($oCurl, CURLOPT_SSL_VERIFYPEER, FALSE);curl_setopt($oCurl, CURLOPT_SSL_VERIFYHOST, false);}if (is_string($param)) {$strPOST = $param;} else {$aPOST = array();foreach($param as $key=>$val){$aPOST[] = $key."=".urlencode($val);}$strPOST =  join("&", $aPOST);}curl_setopt($oCurl, CURLOPT_URL, $url);curl_setopt($oCurl, CURLOPT_RETURNTRANSFER, 1 );curl_setopt($oCurl, CURLOPT_POST,true);curl_setopt($oCurl, CURLOPT_POSTFIELDS,$strPOST);$sContent = curl_exec($oCurl);$aStatus = curl_getinfo($oCurl);curl_close($oCurl);if(intval($aStatus["http_code"])==200){return $sContent;}else{return false;}}/*** 通用auth验证方法，暂时仅用于菜单更新操作* @param string $appid* @param string $appsecret*/public function checkAuth($appid='',$appsecret=''){if (!$appid || !$appsecret) {$appid = $this->appid;$appsecret = $this->appsecret;}//TODO: get the cache access_token$result = $this->http_get(self::API_URL_PREFIX.self::AUTH_URL.'appid='.$appid.'&secret='.$appsecret);if ($result){$json = json_decode($result,true);if (!$json || isset($json['errcode'])) {$this->errCode = $json['errcode'];$this->errMsg = $json['errmsg'];return false;}$this->access_token = $json['access_token'];$expire = $json['expires_in'] ? intval($json['expires_in'])-100 : 3600;//TODO: cache access_tokenreturn $this->access_token;}return false;}/*** 删除验证数据* @param string $appid*/public function resetAuth($appid=''){$this->access_token = '';//TODO: remove cachereturn true;}/*** 微信api不支持中文转义的json结构* @param array $arr*/static function json_encode($arr) {$parts = array ();$is_list = false;//Find out if the given array is a numerical array$keys = array_keys ( $arr );$max_length = count ( $arr ) - 1;if (($keys [0] === 0) && ($keys [$max_length] === $max_length )) { //See if the first key is 0 and last key is length - 1$is_list = true;for($i = 0; $i < count ( $keys ); $i ++) { //See if each key correspondes to its positionif ($i != $keys [$i]) { //A key fails at position check.$is_list = false; //It is an associative array.break;}}}foreach ( $arr as $key => $value ) {if (is_array ( $value )) { //Custom handling for arraysif ($is_list)$parts [] = self::json_encode ( $value ); /* :RECURSION: */else$parts [] = '"' . $key . '":' . self::json_encode ( $value ); /* :RECURSION: */} else {$str = '';if (! $is_list)$str = '"' . $key . '":';//Custom handling for multiple data typesif (is_numeric ( $value ) && $value<2000000000)$str .= $value; //Numberselseif ($value === false)$str .= 'false'; //The booleanselseif ($value === true)$str .= 'true';else$str .= '"' . addslashes ( $value ) . '"'; //All other things// :TODO: Is there any more datatype we should be in the lookout for? (Object?)$parts [] = $str;}}$json = implode ( ',', $parts );if ($is_list)return '[' . $json . ']'; //Return numerical JSONreturn '{' . $json . '}'; //Return associative JSON}/*** 创建菜单* @param array $data 菜单数组数据* example:{"button":[{"type":"click","name":"今日歌曲","key":"MENU_KEY_MUSIC"},{"type":"view","name":"歌手简介","url":"http://www.qq.com/"},{"name":"菜单","sub_button":[{"type":"click","name":"hello word","key":"MENU_KEY_MENU"},{"type":"click","name":"赞一下我们","key":"MENU_KEY_GOOD"}]}]}*/public function createMenu($data){if (!$this->access_token && !$this->checkAuth()) return false;$result = $this->http_post(self::API_URL_PREFIX.self::MENU_CREATE_URL.'access_token='.$this->access_token,self::json_encode($data));if ($result){$json = json_decode($result,true);if (!$json || !empty($json['errcode'])) {$this->errCode = $json['errcode'];$this->errMsg = $json['errmsg'];return false;}return true;}return false;}/*** 获取菜单* @return array('menu'=>array(....s))*/public function getMenu(){if (!$this->access_token && !$this->checkAuth()) return false;$result = $this->http_get(self::API_URL_PREFIX.self::MENU_GET_URL.'access_token='.$this->access_token);if ($result){$json = json_decode($result,true);if (!$json || isset($json['errcode'])) {$this->errCode = $json['errcode'];$this->errMsg = $json['errmsg'];return false;}return $json;}return false;}/*** 删除菜单* @return boolean*/public function deleteMenu(){if (!$this->access_token && !$this->checkAuth()) return false;$result = $this->http_get(self::API_URL_PREFIX.self::MENU_DELETE_URL.'access_token='.$this->access_token);if ($result){$json = json_decode($result,true);if (!$json || !empty($json['errcode'])) {$this->errCode = $json['errcode'];$this->errMsg = $json['errmsg'];return false;}return true;}return false;}/*** 根据媒体文件ID获取媒体文件* @param string $media_id 媒体文件id* @return raw data*/public function getMedia($media_id){if (!$this->access_token && !$this->checkAuth()) return false;$result = $this->http_get(self::API_URL_PREFIX.self::MEDIA_GET_URL.'access_token='.$this->access_token.'&media_id='.$media_id);if ($result){$json = json_decode($result,true);if (isset($json['errcode'])) {$this->errCode = $json['errcode'];$this->errMsg = $json['errmsg'];return false;}return $json;}return false;}  /*** 创建二维码ticket* @param int $scene_id 自定义追踪id* @param int $type 0:临时二维码；1:永久二维码(此时expire参数无效)* @param int $expire 临时二维码有效期，最大为1800秒* @return array('ticket'=>'qrcode字串','expire_seconds'=>1800)*/public function getQRCode($scene_id,$type=0,$expire=1800){if (!$this->access_token && !$this->checkAuth()) return false;$data = array('action_name'=>$type?"QR_LIMIT_SCENE":"QR_SCENE",'expire_seconds'=>$expire,'action_info'=>array('scene'=>array('scene_id'=>$scene_id)));if ($type == 1) {unset($data['expire_seconds']);}$result = $this->http_post(self::API_URL_PREFIX.self::QRCODE_CREATE_URL.'access_token='.$this->access_token,self::json_encode($data));if ($result){$json = json_decode($result,true);if (!$json || !empty($json['errcode'])) {$this->errCode = $json['errcode'];$this->errMsg = $json['errmsg'];return false;}return $json;}return false;}/*** 获取二维码图片* @param string $ticket 传入由getQRCode方法生成的ticket参数* @return string url 返回http地址*/public function getQRUrl($ticket) {return self::QRCODE_IMG_URL.$ticket;}/*** 批量获取关注用户列表* @param unknown $next_openid*/public function getUserList($next_openid=''){if (!$this->access_token && !$this->checkAuth()) return false;$result = $this->http_get(self::API_URL_PREFIX.self::USER_GET_URL.'access_token='.$this->access_token.'&next_openid='.$next_openid);if ($result){$json = json_decode($result,true);if (isset($json['errcode'])) {$this->errCode = $json['errcode'];$this->errMsg = $json['errmsg'];return false;}return $json;}return false;}/*** 获取关注者详细信息* @param string $openid* @return array*/public function getUserInfo($openid){if (!$this->access_token && !$this->checkAuth()) return false;$result = $this->http_get(self::API_URL_PREFIX.self::USER_INFO_URL.'access_token='.$this->access_token.'&openid='.$openid);if ($result){$json = json_decode($result,true);if (isset($json['errcode'])) {$this->errCode = $json['errcode'];$this->errMsg = $json['errmsg'];return false;}return $json;}return false;}/*** 获取用户分组列表* @return boolean|array*/public function getGroup(){if (!$this->access_token && !$this->checkAuth()) return false;$result = $this->http_get(self::API_URL_PREFIX.self::GROUP_GET_URL.'access_token='.$this->access_token);if ($result){$json = json_decode($result,true);if (isset($json['errcode'])) {$this->errCode = $json['errcode'];$this->errMsg = $json['errmsg'];return false;}return $json;}return false;}/*** 新增自定分组* @param string $name 分组名称* @return boolean|array*/public function createGroup($name){if (!$this->access_token && !$this->checkAuth()) return false;$data = array('group'=>array('name'=>$name));$result = $this->http_post(self::API_URL_PREFIX.self::GROUP_CREATE_URL.'access_token='.$this->access_token,self::json_encode($data));if ($result){$json = json_decode($result,true);if (!$json || !empty($json['errcode'])) {$this->errCode = $json['errcode'];$this->errMsg = $json['errmsg'];return false;}return $json;}return false;}/*** 更改分组名称* @param int $groupid 分组id* @param string $name 分组名称* @return boolean|array*/public function updateGroup($groupid,$name){if (!$this->access_token && !$this->checkAuth()) return false;$data = array('group'=>array('id'=>$groupid,'name'=>$name));$result = $this->http_post(self::API_URL_PREFIX.self::GROUP_UPDATE_URL.'access_token='.$this->access_token,self::json_encode($data));if ($result){$json = json_decode($result,true);if (!$json || !empty($json['errcode'])) {$this->errCode = $json['errcode'];$this->errMsg = $json['errmsg'];return false;}return $json;}return false;}/*** 移动用户分组* @param int $groupid 分组id* @param string $openid 用户openid* @return boolean|array*/public function updateGroupMembers($groupid,$openid){if (!$this->access_token && !$this->checkAuth()) return false;$data = array('openid'=>$openid,'to_groupid'=>$groupid);$result = $this->http_post(self::API_URL_PREFIX.self::GROUP_MEMBER_UPDATE_URL.'access_token='.$this->access_token,self::json_encode($data));if ($result){$json = json_decode($result,true);if (!$json || !empty($json['errcode'])) {$this->errCode = $json['errcode'];$this->errMsg = $json['errmsg'];return false;}return $json;}return false;}/*** 发送客服消息* @param array $data 消息结构{"touser":"OPENID","msgtype":"news","news":{...}}* @return boolean|array*/public function sendCustomMessage($data){if (!$this->access_token && !$this->checkAuth()) return false;$result = $this->http_post(self::API_URL_PREFIX.self::CUSTOM_SEND_URL.'access_token='.$this->access_token,self::json_encode($data));if ($result){$json = json_decode($result,true);if (!$json || !empty($json['errcode'])) {$this->errCode = $json['errcode'];$this->errMsg = $json['errmsg'];return false;}return $json;}return false;}/*** oauth 授权跳转接口* @param string $callback 回调URI* @return string*/public function getOauthRedirect($callback,$state='',$scope='snsapi_userinfo'){return self::OAUTH_PREFIX.self::OAUTH_AUTHORIZE_URL.'appid='.$this->appid.'&redirect_uri='.urlencode($callback).'&response_type=code&scope='.$scope.'&state='.$state.'#wechat_redirect';}/** 通过code获取Access Token* @return array {access_token,expires_in,refresh_token,openid,scope}*/public function getOauthAccessToken(){$code = isset($_GET['code'])?$_GET['code']:'';if (!$code) return false;$result = $this->http_get(self::OAUTH_TOKEN_PREFIX.self::OAUTH_TOKEN_URL.'appid='.$this->appid.'&secret='.$this->appsecret.'&code='.$code.'&grant_type=authorization_code');if ($result){$json = json_decode($result,true);if (!$json || !empty($json['errcode'])) {$this->errCode = $json['errcode'];$this->errMsg = $json['errmsg'];return false;}$this->user_token = $json['access_token'];return $json;}return false;}/*** 刷新access token并续期* @param string $refresh_token* @return boolean|mixed*/public function getOauthRefreshToken($refresh_token){$result = $this->http_get(self::OAUTH_TOKEN_PREFIX.self::OAUTH_REFRESH_URL.'appid='.$this->appid.'&grant_type=refresh_token&refresh_token='.$refresh_token);if ($result){$json = json_decode($result,true);if (!$json || !empty($json['errcode'])) {$this->errCode = $json['errcode'];$this->errMsg = $json['errmsg'];return false;}$this->user_token = $json['access_token'];return $json;}return false;}/*** 获取授权后的用户资料* @param string $access_token* @param string $openid* @return array {openid,nickname,sex,province,city,country,headimgurl,privilege}*/public function getOauthUserinfo($access_token,$openid){$result = $this->http_get(self::OAUTH_USERINFO_URL.'access_token='.$access_token.'&openid='.$openid);if ($result){$json = json_decode($result,true);if (!$json || !empty($json['errcode'])) {$this->errCode = $json['errcode'];$this->errMsg = $json['errmsg'];return false;}return $json;}return false;}
}

接下来就是接口对应的index.php文件，处理微信服务器发送来的信息。

因为是工作室的微信公共账号，所以未做任何修改源码搬上来，截取有用的部分即可：

<?php
/***    WeeGo工作室微信公众平台接口源码*  @author  CallMeWhy <wanghaiyang@139.me>*  @link http://blog.csdn.net/pleasecallmewhy/article/details/18862539*  @version 1.0*/
include "wechat.class.php";$options = array
('token'=>'weego','debug'=>true,'logcallback'=>'logdebug'
);$weObj = new Wechat($options);
// 验证
$weObj->valid();
// 获取内容
$weObj->getRev();
// 获取用户的OpenID
$fromUsername = $weObj->getRevFrom();
// 获取接受信息的类型
$type = $weObj->getRev()->getRevType();//**********关注操作则写入数据库**********/
if($weObj->getRevSubscribe())
{// 获取用户OPENID并写入数据库$mysql = new SaeMysql();$sql = "INSERT INTO `users` (`wxid`) VALUES ('" . $fromUsername . "');";$mysql->runSql($sql);$mysql->closeDb();// 获得信息的类型$news = array(array('Title'=>'欢迎关注WeeGo工作室','Description'=>'发送任意内容查看最新开发进展','PicUrl'=>'http://233.weego.sinaapp.com/images/weego_400_200.png',));$weObj->news($news)->reply();
}//**********取消关注操作则删除数据库**********/
if($weObj->getRevUnsubscribe())
{// 获取用户OPENID并从数据库删除$mysql = new SaeMysql();$sql = "DELETE FROM `users` WHERE `wxid` = '" . $fromUsername . "'";$mysql->runSql($sql);$mysql->closeDb();
}switch($type) {case Wechat::MSGTYPE_TEXT:/**********文字信息**********/$news = array(array('Title'=>"欢迎光临WeeGo工作室",'PicUrl'=>'http://233.weego.sinaapp.com/images/weego_400_200.png',//'Url'=>'http://233.weego.sinaapp.com/web/home.php?wxid='.$fromUsername),      array('Title'=>"功能1：发送图片可以查询照片中人脸的年龄和性别信息哦",'PicUrl'=>'http://233.weego.sinaapp.com/images/face.jpg',//'Url'=>'http://233.weego.sinaapp.com/web/home.php?wxid='.$fromUsername), array('Title'=>"功能2：发送一张两人合影的照片可以计算两人的相似程度",'PicUrl'=>'http://233.weego.sinaapp.com/images/mask.png',//'Url'=>'http://233.weego.sinaapp.com/web/home.php?wxid='.$fromUsername), array('Title'=>"功能3：山东大学绩点查询签到等功能正在开发中敬请期待",'PicUrl'=>'http://233.weego.sinaapp.com/images/sdu.jpg',//'Url'=>'http://233.weego.sinaapp.com/web/home.php?wxid='.$fromUsername));// 开发人员通道if($weObj->getRev()->getRevContent() === "why"){$news = array(array('Title'=>'开发人员通道','Description'=>'开发人员通道','PicUrl'=>'http://233.weego.sinaapp.com/images/weego_400_200.png','Url'=>'http://233.weego.sinaapp.com/web/home.php?wxid='.$fromUsername));}$weObj->news($news)->reply();exit;break;case Wechat::MSGTYPE_EVENT:break;case Wechat::MSGTYPE_IMAGE:/**********图片信息**********/$imgUrl = $weObj->getRev()->getRevPic();$resultStr = face($imgUrl);$weObj->text($resultStr)->reply();break;default:$weObj->text("Default")->reply();
}// 调用人脸识别的API返回识别结果
function face($imgUrl)
{// face++ 链接$jsonStr =file_get_contents("http://apicn.faceplusplus.com/v2/detection/detect?url=".$imgUrl."&api_key=5eb2c984ad24ffc08c352bdb53ee52f8&api_secret=ViX19uvxkT_A0a6d55Hb0Q0QGMTqZ95f&&attribute=glass,pose,gender,age,race,smiling");$replyDic = json_decode($jsonStr);$resultStr = "";$faceArray = $replyDic->{'face'};$resultStr .= "图中共检测到".count($faceArray)."张脸！\n";for ($i= 0;$i< count($faceArray); $i++){$resultStr .= "第".($i+1)."张脸\n";$tempFace = $faceArray[$i];// 获取所有属性$tempAttr = $tempFace->{'attribute'};// 年龄：包含年龄分析结果// value的值为一个非负整数表示估计的年龄, range表示估计年龄的正负区间$tempAge = $tempAttr->{'age'};// 性别：包含性别分析结果// value的值为Male/Female, confidence表示置信度$tempGenger    = $tempAttr->{'gender'};  // 种族：包含人种分析结果// value的值为Asian/White/Black, confidence表示置信度$tempRace = $tempAttr->{'race'};        // 微笑：包含微笑程度分析结果//value的值为0-100的实数，越大表示微笑程度越高$tempSmiling = $tempAttr->{'smiling'};// 眼镜：包含眼镜佩戴分析结果// value的值为None/Dark/Normal, confidence表示置信度$tempGlass = $tempAttr->{'glass'};  // 造型：包含脸部姿势分析结果// 包括pitch_angle, roll_angle, yaw_angle// 分别对应抬头，旋转（平面旋转），摇头// 单位为角度。$tempPose = $tempAttr->{'pose'};//返回年龄$minAge = $tempAge->{'value'} - $tempAge->{'range'};$minAge = $minAge < 0 ? 0 : $minAge;$maxAge = $tempAge->{'value'} + $tempAge->{'range'};$resultStr .= "年龄：".$minAge."-".$maxAge."岁\n";// 返回性别if($tempGenger->{'value'} === "Male")$resultStr .= "性别：男\n";  else if($tempGenger->{'value'} === "Female")$resultStr .= "性别：女\n";// 返回种族if($tempRace->{'value'} === "Asian")$resultStr .= "种族：黄种人\n"; else if($tempRace->{'value'} === "Male")$resultStr .= "种族：白种人\n";   else if($tempRace->{'value'} === "Black")$resultStr .= "种族：黑种人\n";  // 返回眼镜if($tempGlass->{'value'} === "None")$resultStr .= "眼镜：木有眼镜\n";   else if($tempGlass->{'value'} === "Dark")$resultStr .= "眼镜：目测墨镜\n"; else if($tempGlass->{'value'} === "Normal")$resultStr .= "眼镜：普通眼镜\n";   //返回微笑$resultStr .= "微笑：".round($tempSmiling->{'value'})."%\n";}   if(count($faceArray) === 2){// 获取face_id$tempFace = $faceArray[0];$tempId1 = $tempFace->{'face_id'};$tempFace = $faceArray[1];$tempId2 = $tempFace->{'face_id'};// face++ 链接$jsonStr =file_get_contents("https://apicn.faceplusplus.com/v2/recognition/compare?api_secret=ViX19uvxkT_A0a6d55Hb0Q0QGMTqZ95f&api_key=5eb2c984ad24ffc08c352bdb53ee52f8&face_id2=".$tempId2 ."&face_id1=".$tempId1);$replyDic = json_decode($jsonStr);//取出相似程度$tempResult = $replyDic->{'similarity'};$resultStr .= "相似程度：".round($tempResult)."%\n";//具体分析相似处$tempSimilarity = $replyDic->{'component_similarity'};$tempEye = $tempSimilarity->{'eye'};$tempEyebrow = $tempSimilarity->{'eyebrow'};$tempMouth = $tempSimilarity->{'mouth'};$tempNose = $tempSimilarity->{'nose'};$resultStr .= "相似分析：\n";$resultStr .= "眼睛：".round($tempEye)."%\n";$resultStr .= "眉毛：".round($tempEyebrow)."%\n";$resultStr .= "嘴巴：".round($tempMouth)."%\n";$resultStr .= "鼻子：".round($tempNose)."%\n";}//如果没有检测到人脸if($resultStr === "")$resultStr = "照片中木有人脸=.=";return $resultStr;
};// 写入本地日志文件的函数
function logdebug($text)
{file_put_contents('log.txt', $text."\n", FILE_APPEND);
};

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