PHP使用Face++接口开发微信公众平台人脸识别系统的方法


本文实例讲述了PHP使用Face++接口开发微信公众平台人脸识别系统的方法 。分享给大家供大家参考 。具体如下:

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, Im 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; 
          else 
            return false; 
        } else  
          return $this->checkSignature(); 
    } else { 
        if ($echoStr) { 
          if ($this->checkSignature()) 
            die($echoStr); 
          else  
            die(no access); 
        } else { 
          if ($this->checkSignature()) 
            return true; 
          else 
            die(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 $this->_receive[Recognition]; 
    else 
      return false; 
  } 
  /** 
   * 获取接收消息图片 
   */ 
  public function getRevPic(){ 
    if (isset($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=>$this->_receive[ThumbMediaId] 
      ); 
    } else 
      return false; 
  } 
  /** 
   * 获取接收TICKET 
   */ 
  public function getRevTicket(){ 
  if (isset($this->_receive[Ticket])){ 
    return $this->_receive[Ticket]; 
  } else 
    return false; 
  } 
  /** 
   * 获取二维码的场景值 
   */ 
  public function getRevSceneId (){ 
    if (isset($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; 
    else 
      echo $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_token 
      return $this->access_token; 
    } 
    return false; 
  } 
  /** 
   * 删除验证数据 
   * @param string $appid 
   */ 
  public function resetAuth($appid=){ 
    $this->access_token = ; 
    //TODO: remove cache 
    return 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 ); $i ++) { //See if each key correspondes to its position 
        if ($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 ( $value )) { //Custom handling for arrays 
        if ($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 types 
        if (is_numeric ( $value ) && $value<2000000000) 
          $str .= $value; //Numbers 
        elseif ($value === false) 
        $str .= false; //The booleans 
        elseif ($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 JSON 
    return { . $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> 
 * @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);    
};

希望本文所述对大家基于php的微信公众平台开发有所帮助 。