Symfony 2 and ZipArchive - class not found!

It was crazy. I was trying to make my ZipArchive work and I know now, that it was already working just Symfony2 did not knew about it!

Fatal error: Class 'Demo\AcmeBundle\Controller\ZipArchive' not found 

How to use template engine in Symfony 2?

Symfony 2 comes bundled with Twig template engine, so you definitely want to use it. Twig template engine has everything what you need to keep your business logic out of templates and stay on MVC pattern, which is used in Symfony 2. The best thing about Twig template engine is that in many cases it is even faster than raw PHP, because finally it renders to raw and optimised PHP code.

How to join 2 SQL tables with PHP? Examples and visualisations

Often you need to join data from 2 tables. You can do it with several SQL queries and PHP, or just use JOIN functions. The JOIN keyword is used in an SQL statement to query data from two or more tables, based on a relationship between certain columns in these tables. Most popular joins are INNER JOIN, LEFT JOIN, RIGHT JOIN and FULL JOIN. It's always good to know the different.

What is a Favicon? Where can I get it? How add favicon to my site?

Most website have favicon and it's great to have one. It helps your user to find your page easier between his/hers bookmarks or opened browser's tabs. Generally favicon means favorite icon, you can find it here: