Which template system should I use ?

[eluser]Rick Jolly[/eluser]
[quote author="EugeneS" date="1192049485"]say me please what the purpose to use template engine in CI ?

answer to this question firstly and then try to answer to another:
why i cant use alternate php syntax in the views?

what the difference between template engine in CI and views with the alternative php syntax?[/quote]
I just wanted to build on miau's answer to this.

Many template engines provide more than just shorter syntax.

I've said that Html_Template_Flexy has form controls equivalent to asp.net (in fact any html element can be a dynamic object modifiable in the controller). You couldn't do that with php in your view without the view becoming a complete mess.

Phptal puts logic within the html elements using valid html namespaces. That allows you to add logic to html transparently. Again, you couldn't do that with php in your view without the view becoming a complete mess.

Most template engines will html escape your dynamic text automatically by default to avoid xss security holes.

Smarty and phptal have modifiers that are shortcuts to helper methods. You don't have to write/include the helpers yourself. The sytax is also shorter and simpler. A small difference, but we've been looking at php so long I think we forget the value that a bit of simplification can add for others.