Cannot validate right? Why? New to PDO

Vote count:

0

I cant seem to validate right when i have an empty field or when the username is wrong or doesnt match. please any help or pointing me would be very helpful. I tried (empty but it doesnt seem to work when i fill in one field and the other is empty its says all fields are empty. and for the wrong credentials its not working at all.

INDEX.PHP

<?php
session_start();
include_once 'php/classes/class.user.php';

$user = new User();
$log = $_SESSION['uid'];

if ($user->get_session($log)){
    header("Location: profile.php?uid=".$log."");
}

if (isset($_REQUEST['submit'])) {
    extract($_REQUEST);
    $login = $user->check_login($emailusername, $password);

    if(!empty($login)){

         if($emailusername != $login){

            if($password != $login){
                if ($login) {
                // Registration Success
                $log_id = $_SESSION['uid'];
                header("location: profile.php?uid=".$log_id."");

                }
            }else
                echo "Incorrect Password";

        }else
            echo "Incorrect Email";

    }else
        echo "Fill in fields";
}
?>

USERS.PHP

<?php 

include "db_config.php";

class User{

    public $db;

    public function __construct(){
        $this->db = new mysqli(DB_SERVER, DB_USERNAME, DB_PASSWORD, DB_DATABASE);

        if(mysqli_connect_errno()) {
            echo "Error: Could not connect to database.";
                exit;
        }
    }

    /*** for login process ***/
    public function check_login($emailusername, $password){

        $password = md5($password);
        $sql2="SELECT uid from users WHERE uemail='$emailusername' or uname='$emailusername' and upass='$password'";

        //checking if the username is available in the table
        $result = mysqli_query($this->db,$sql2);
        $user_data = mysqli_fetch_array($result);
        $count_row = $result->num_rows;

        if ($count_row == 1) {
            // this login var will use for the session thing    
            session_start();
            $emaildb == $_SESSION['uemail'];
            $_SESSION['login'] = true;
            $_SESSION['uid'] = $user_data['uid'];
            return true;
        }
        else{
            return false;
        }
    }
    /*** for showing the username or fullname ***/

    public function get_fullname($uid){
    $sql = "SELECT * FROM users WHERE uid = $uid";
    $result = mysqli_query($this->db, $sql);
    $user_data = mysqli_fetch_array($result);

        echo $user_data['fullname'], "<br/>";
        echo $user_data['uemail'], "<br/>";
        echo $user_data['uid'], "<br/>";
    }

    public function check_user($uid){

        $sql5 = "SELECT * from users WHERE uid='$uid'";
        $result1 = mysqli_query($this->db, $sql5);
        $count_row1 = $result1->num_rows;

        return ($count_row1 == 1);

    }

    /*** starting the session ***/
    public function get_session(){
        return $_SESSION['login'];
    }

    public function user_logout() {
        $_SESSION['login'] = FALSE;
        session_destroy();
    }

}

asked 3 mins ago

Love_PHP

27

Cannot validate right? Why? New to PDO