<?php
function loginCheck($conn){

            session_start();
            //Check if login is achieved
            //Get variables from form
            $username=$_POST['namebox'];
            $password=$_POST['passbox'];
            $id=$_POST['idbox'];
            $stmt= $conn->prepare("SELECT * FROM users WHERE username =:username AND password=:password AND id=:id");
            $stmt->bindParam(':username',$username);
            $stmt->bindParam(':password',$password);
            $stmt->bindParam(':id',$id);
            $stmt->execute();

            if(($stmt->rowCount()>0) ||($_SESSION['admin'])){
                echo "<p>Login successful</p>";
                $_SESSION['admin']=true;
                if ($id = 1 && $id =2) {
                    header('Location: home.php');
                    }
                else if ($id = 3) {
                    header('Location: home.1.php');
                    }
              else if ($id = 4) {
                    header('Location: home.2.php');
                    }
             else if ($id > 5) {
                    header('Location: home.2.php');
                    }
                return true;
            }

            else {
                return false;
            }


        }//End of loginCheck

function loginCheck($conn){

            session_start();
            //Check if login is achieved
            //Get variables from form
            $username=$_POST['namebox'];
            $password=$_POST['passbox'];
            $age=$_POST['agebox'];
            $stmt= $conn->prepare("SELECT * FROM users WHERE username =:username AND password=:password AND age=:age");
            $stmt->bindParam(':username',$username);
            $stmt->bindParam(':password',$password);
            $stmt->bindParam(':age',$age);
            $stmt->execute();

            if(($stmt->rowCount()>0) ||($_SESSION['admin'])){
                echo "<p>Login successful</p>";
                $_SESSION['admin']=true;
                if ($age > 16) {
                    header('Location: home.php');
                    }
                else if ($age >11 && $age <15) {
                    header('Location: home.1.php');
                    }
              else if ($age >6 && $age <10) {
                    header('Location: home.2.php');
                    }
              else if ($age >2 && $age <5) {
                    header('Location: home.3.php');
                    }

                return true;
            }

            else {
                return false;
            }


        }//End of loginCheck

<?php
    require('functions.php');
    if(loginCheck($conn)){
      header('Location: home.php');
    }

    else {
      require('loginheader.php');
      ?>

      <form name="login" action="" method="POST">
        <label style="color: white; text-shadow: -1px 0 black, 0 1px black, 1px 0 black, 0 -1px black;" required><u>Name</u> : </label>
         <input type="text" name="namebox" length="20">
         <br/><br/>
         <label style="color: white; text-shadow: -1px 0 black, 0 1px black, 1px 0 black, 0 -1px black;" required><u>Password</u> : </label>
         <input type="password" name="passbox" length="20">
         <br/><br/>
         <label style="color: white; text-shadow: -1px 0 black, 0 1px black, 1px 0 black, 0 -1px black;" required><u>ID</u> : </label>
         <input type="number" name="idbox" length="20">
         <br/><br/>
         <input type="submit" class="button" name="submit">
      </form>

      <?php
      require('footer.php');
    }