This method will set an empty alt attribute if one is not supplied.
### Usage:
Create a regular image:
echo $this->Html->image('cake_icon.png', ['alt' => 'CakePHP']);
Create an image link:
echo $this->Html->image('cake_icon.png', ['alt' => 'CakePHP', 'url' => 'http://cakephp.org']);
### Options:
- url If provided an image link will be generated and the link will point at
$options['url'].
- fullBase If true the src attribute will get a full address for the image file.
- plugin False value will prevent parsing path as a plugin