First time with OOP in php - php

Question

It's my first time using some OOP in PHP.
I have made this simple login system, but for some reason it doesn't seems to be working.
Whenever I enter some details on the page admin_login.php it again redirects me to admin_login.php without saying anything.
I'm not sure what's wrong.
class.admin.php
<?php
include 'inc/inc.functions.php';
include '..dbconnector.php';
class admin
{
public function logged_in()
{
if(isset($_SESSION['adminLogged'])==1)
{
return true;
}
else
{
return false;
}
} //function
public function login_correct($username,$password)
{
global $conn;
try
{
$statement = $conn->prepare("SELECT * from admins where username = ? and password = ?");
$statement->execute(
array(
$username,
$password));
$row=$statement->rowCount();
if($rows > 0)
{
return true;
}
else
{
return false;
}
}
catch(PDOException $e)
{
echo $e->getMessage();
}
}//funcion
}
?>
admin_login.php
<?php
{
?>
<table>
<form method="post" action="admin_process.php?process=login">
<tr>
<td>Username : </td>
<td><input type="text" name="username" id="username" /></td>
</tr>
<tr>
<td>Password : </td>
<td><input type="password" name="password" id="password" /></td>
</tr>
<tr>
<td><input type="submit" name="submit" value="Login"></td>
</tr>
</form>
</table>
<?php
}
?>
admin_process.php
<?php
session_start();
include 'class/class.admin.php';
include 'dbconnector.php';
$admin = new admin();
if(isset($_REQUEST['process']))
{
switch($_REQUEST['process'])
{
case 'login':
$username = $_POST['username'];
$password = $_POST['password'];
if($admin->login_correct($username, $password))
{
header('refresh:2;URL=admin_home.php');
$_SESSION['adminLogged']=1;
$_SESSION['adminUsername']=$username;
}
else
{
echo "Wrong username or password";
}
break;
default:
header('Location:admin_home.php');
}
}
else
{
header('Location:admin_home.php');
}
?>
All suggestions are welcome.

Answer 1

Change the $_REQUEST['process'] to $_REQUEST['submit'] and then try.