Question

我刚刚潜入php对象并试图设置/获取一些属性。

我认为我理解吸气剂和制定者以及魔术方法，至少是专业人士使用它们。（我现在正在使用一种神奇的方法，所以在我学习的时候，我需要维护更少的代码，而且我也不确定我需要存储多少关于我的用户的信息）

我想将$ _userdata作为具有一组属性的对象。 loggedin（true false） firstname（用户的名字） lastname（用户的姓氏） ....和其他人

我在设置和获取值时遇到问题

require_once('facebook/facebook.php'); // require facebook sdk
require_once('config.class.php'); // require config class
require_once('dbconn.class.php'); //require database connector

class user{
    public $_userData; // holds information of our user
    private $conn; // our database connection
    public $facebook; // facebook sdk
    public $fbuser; // the facebook user
    //Constructor
    public function __construct(Array $properties=array()) {
        $this->conn = DBconn::getInstance(); //get DB instance
        $this->facebook = new Facebook(Config::read('fb.facebook'));
        $this->_userData = $properties;
    }

    // magic methods for reading/writing our user properties!
    public function __set($property, $value){
        return $this->_userData[$property] = $value;
    }

    public function __get($property){
        return array_key_exists($property, $this->_userData)? 
            $this->_userData[$property]: 
            null
        ;        
    }
    /**
    * getSession - saves session vars to our user
    * @return bool: true - session retrieved
    *               false - no session found
    */
    public function getSession(){
        if (isset($_SESSION['loggedin']) && $_SESSION['loggedin'] == true) {
            //save session to this user
            $this->_userData->email = $_SESSION['email'];
            $this->_userData->loggedin = $_SESSION['loggedin'];
            $this->_userData->provider = $_SESSION['provider'];
            $this->_userData->uid = $_SESSION['uid'];
            //something wrong as the properties dont get set!!!!
            return true;
        }else{
            return false;
        }
    }
    public function getProfile(){
        //first set the users profile information
        try{
            $pdoQuery = ("SELECT
                email_upl as'email',
                firstname_upl as 'firstname',
                lastname_upl as 'lastname',
                username_upl as 'username',
                image_upl as 'image',
                info_upl as 'info'
                FROM userprofile_upl
                WHERE email_upl = :email"
            );
            $stmt = $this->conn->dbh->prepare($pdoQuery);
            //this->_userdata->email returns null...
            $stmt->bindParam(':email', $this->_userData->email); 
            $row = $stmt->fetch(PDO::FETCH_OBJ);
            // row has no data because the email property has no value!!!
            //var_dump($row); 
            $this->_userData->email = $row->email;
            $this->_userData->firstname= $row->firstname;
            $this->_userData->lastname = $row->lastname;
            $this->_userData->info = $row->info;
            return (true);
        }catch(PDOException $e){
            echo('There was an error while connecting to your profile<br>');
            return false;
        }
    }
/**
     * loginFacebook - Logs a user into the site with facebook
     * Checks to see if user has an account and if not make one.
     * Checks to see if user has a profile and if not make one.
     * Checks to see if user has facebook credentials on this site
     * @return mixed
     */
    public function loginFacebook(){
        $fbuser = $this->facebook->getUser();//get facebook user
        if($fbuser){// if we have a user returned we have user who's authenticated and logged in with facebook
            try { // Proceed knowing we have a user.
                $me = $this->facebook->api('/me'); // the facebook user
                //generate a log-out url
                $params = array( 'next' => config::read('url.logout'));
                //set user logout_url
                $this->_userData->logout_url = $this->facebook->getLogoutUrl($params);
                //set the users details
                // this values are not getting set
                // so when the setSession is called it has no values to poulate the session with
                $this->_userData->uid = $this->facebook->getUser();
                $this->_userData->firstname = $me['first_name'];
                $this->_userData->lastname = $me['last_name'];
                $this->_userData->email = $me['email'];
                $this->_userData->provider = 'facebook';
                var_dump($this->_userData);
                if(!$this->fbAccountExists($this->_userData)){
                    //$this->fbCreateAccount($this->_userData);
                };
                if(!$this->profileExists()){
                    //$this->createProfile();
                }
                var_dump($this->_userData);
                $this->setSession();
            }
            catch (FacebookApiException $e){ //if theres an error
                $fbuser = null; //set the user to nothing
                return false();
            }
        }
        if(!$fbuser){
            //get a login url, returns to this page so we can process the login($fblogin_url)
            $loginUrl = $this->facebook->getLoginUrl(array('redirect_uri'=>Config::read('url.fblogin'), false));
            header('Location: '.$loginUrl);//redirect to the login page
        }
    }

}

用法：

$user = new user(); // create a new user
$user->getSession(); //get the user from the session
var_dump($user->_userData); // data contains null values

会话包含以下数据

[ “的loggedIn”] =＆GT;布尔（真） [ “电子邮件”] =＆GT;空值 [ “UID”] =＆GT; NULL [“provider”] =＆gt; NULL}

用户对象不包含数据

$这 - ＆GT; _userData
array（0）{}

所以问题在于初始loginFacebook方法没有设置属性。

安装员不在那里工作....

PHP访问存储在类中对象中的变量

0 个答案: