Online PHP editor | output for 3XIv4

<?php /* assuming: <form action='admin.php' name='value' method='POST'> <input type="radio" name="option" value="employee" checked> View Customers<br> <input type="radio" name="option" value="upload"> Upload File<br> <input type="radio" name="option" value="editUser"> Edit Access<br> <input type="submit" name="submit" value="Enter" class="button" /> </form> */ //just simulating $_POST['option'] = 'employee'; function redirect_to ($to){ echo $to; } //code: $redirectsAllowed = ['employee', 'upload', 'editUser']; if(isset($_POST['option']) && in_array($_POST['option'],$redirectsAllowed,true)){ redirect_to ($_POST['option'] . '.php'); }