Using $this in magento programming

[speed2x]

The infamous $this found in Magento templates is a concept that I’ve found baffles beginner Magento developers. Here’s to hoping I can provide a half-decent explanation as to what it is, and where it comes from.

The most important point you should take away from this is: all Magento templates have a corresponding block instance. The $this exposed to us is the block instance, as if we were inside a method of the object (We actually are! See Mage_Core_Block_Template::fetchView).

Blocks are PHP classes that are designed as a place to put all of your business logic, instead of your templates. Blocks are normally reusable classes. A great example of the reusability of certain classes is the Mage_Core_Block_Template and Mage_Page_Block_Html_Pager classes. The core/template block is the foundation of the template system, allowing us the ability to load .phtml files from our themes. The page/html_pager block provides generic methods for paginating collections, such as isLastPage().

If you’re ever in any doubt as to which block type the template is using, just call echo get_class($this). Remember, it’s an object. This gives you a great place to start when hunting down methods available to the template.

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[PeterMaskolin]

Magento is an Ecommerce Platform Created On Open Source Technology, which provides online merchants with an exceptional flexibility and control over the content, look and functionality of their e-commerce store.

[TangelThor]

What is Magento? It's the most powerful online eCommerce platform in the universe and is changing the face of eCommerce forever. :-)
Of course, you already know that. What you may not realize is Magento's also an object-oriented PHP Framework that can be used to develop modern, dynamic web applications that tap into Magento's powerful eCommerce features.
This is the first in a series of articles in which we're going to go on a whirlwind tour of Magento's programming framework features

[apnacoupon]

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