Here is small example which will give you a basic idea about CakePHP find & save operation.

<?php
class PagesController extends AppController {

    public $name = 'Pages';
    public $uses = array('User');
    public function show() {
    if (!empty($this->request->data)) {

      $this->User->save($this->request->data);
    }
 
    $Users = $this->User->find('all');
    $this->set('Users', $Users);
    $this->render('Add');
    }
}

find () function: find all users from database.
set() function: Pass user data to view.
render() function: show output in add.ctp instead of default show.ctp
save() function: save requested data in DB.

Add.ctp

<?php
echo $this->Form->create('User');
echo $this->Form->input('firstname');
echo $this->Form->input('lastname');
echo $this->Form->input('email');
echo $this->Form->end('Add');
?>
<hr/>
<h1>Current Users</h1>

<table>
<tr><th>First Name</th><th>Last name</th><th>Email</th></tr>
<?php
foreach ($Users as $User):
?>
<tr>
<td><?php echo $User['User']['firstname']; ?></td>
<td><?php echo $User['User']['lastname']; ?></td>
<td><?php echo $User['User']['email']; ?></td>
</tr>
<?php
endforeach;
?>
</table>