To create a form using tables, even a beginner webmaster can do it, but for formatting a tableless form, some skills are required. Let's consider a simple example, such as a login form.

Using templates in Symfony framework can be done in several ways. First, you can use PHP templates. But the preferred option is to use the Twig template engine (by default). Twig is a compiling open-source template engine written in PHP. It produces PHP/HTML code as output. Besides being very functional, Twig is also very fast.

Previously, we learned to use the QwtPlotSpectrocurve component (here). Qwt provides an alternative component that is more convenient for visualizing analytical functions. In this note, we will learn how to use QwtPlotSpectrogram.

During the work with Symfony framework, I received the following warning:

Warning: date_default_timezone_get(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected the timezone 'UTC' for now, but please set date.timezone to select your timezone. in /var/www/symfony/app/cache/prod/classes.php on line 5009

In fact, there is nothing to worry about or unusual - this was caused by updating PHP to version 5.4, and since the new version was installed next to the old one with new configs, it was necessary to configure the PHP timezone in php.ini again. First, we need to find out which timezone we are in. More precisely, how it should be specified in the PHP config.

After learning how to create controllers (here), it is important to understand how a user can invoke a controller and how to work with it.

The Symfony framework has a special feature called routing system. In yii framework , for example, routing is determined by the file structure of the application by default (although you can still use a routing system with the necessary tools). However, in Symfony framework, you have to define the routing manually (excluding the basic routing created by the bundle generator).

After creating bundle (in the previous lesson), it's time to start describing the application logic. For this, we need to understand the principles of working with controllers in Symfony framework. (You can read about what a controller is as a category of MVC here).

So, after studying the materials 1, 2, 3, it's time to start developing your first Symfony application =). So, as you already know, everything in Symfony is a bundle. And, as you remember, the place for bundles is the src/ directory.

In Europe, the release of the Sony PlayStation 4 gaming console is planned for the end of 2013. Unlike similar devices from other manufacturers, this device is positioned specifically as a gaming console, not a multimedia center (like, for example, Microsoft Xbox One, Valve Steambox).