title: Pure PHP/HTML views VS template engines views
body: <p>I would like to know which approach is faster, using the pure PHP in the HTML files or using a template engines like Smarty,Twig, ... 
  What I would particularly like to know is next: which is parsed faster, is the Smarty cache for example faster than using pure PHP? 
  Which of the template engines is the fastest? I'm about to rewrite simple application where speed is on the first place.</p>