在cakePHP中设置为控制器名称的标题栏的默认值？

In a cakephp layout I fetch a block in order to set the title of the page like so

<title>Example - <?php echo $this->fetch('title');?></title>

I have noticed that unless I create a block 'title' in a view or assign some value to the block, the value of title always corresponds to the name of the controller. I have not found this behaviour documented anywhere. Is there any way to change this? My cakePHP version is 2.7.5.

You can pass a default value to be output by $this->fetch() if a value hasn't already been assigned using the second parameter:-

echo $this->fetch('title', 'Default title');

To override the default just use $this->assign() in your view (before $this->fetch() is called):-

$this->assign('title', 'Overridden title');

In your controller

class ExampleController extends AppController {

   // Set title in default for all this controller methods
   public $title = "Your title";

   // Override the title by setting title in method
   public function

        $this->set('title', 'Your title');
   }
}

In your layout or view

cakephp 2.x
<?php echo $this->fetch('title'); ?>

cakephp 3.x
<?= $this->fetch('title'); ?>