如何解决PHP中的“未定义变量”通知？

Question

I have two models: 'gallery' and 'image'. When I try to fetch images from the galleries_controller I see this error:

Notice (8): Undefined variable: images [APP\\controllers\\galleries_controller.php, line 25]

I use CakePHP's find method to limit the images results.

Here is my galleries_controller:

function view($id = null) {
    if (!$id) {
        $this->Session->setFlash(__('Invalid image', true));
        $this->redirect(array('action' => 'index'));
    }
    $this->set('gallery', $this->Galley->read(null, $id));
    /// this code have some problem ///
    $this->loadModel('image');
    $Images=  $this->Image->find('all',
        array(
            'limit' => 2, //int
        )
    );
    $this->set('images', $images);
}

Answer 1

The variable name is case sensitive ($Images and $images need to be all lowercase or all uppercase)

// you have a UPPERCASE I    
$Images = $this->Image->find([...]

// you have a lowercase I
$this->set('images', $images);

Answer 2

Check your capitalization...

$Images=  $this->Image->find('all',
...
$this->set('images', $images);

$Images != $images