One of the common tasks the web application might be required to perform, especially the app using some kind of a CMS, is to save the history of data changes. Your client for sure will want the answer to this simple question - If I mess this up or delete by accident can we bring it back? Well, DB backup is one thing and quick recovery is another - let's talk about latter one.

I'm using PayPal's script from

I faced many issues when hosted our company website on AppFog.

MailGun.php Class

This tutorial is explained following "basic" application structure.

Your application is international and you have to select the best language for the user. Your user may have selected 'fr_CA' and you have 'fr_FR' or 'fr' available. What do you do? Here is a tip.

Sometimes we need to create our custom exception and show it to the end user through a friendly way . In this article, I'm showing how to do it using CJuidialog.

During development and depending on your setup you may need to use the options forceCopy or linkAssets of the asset manager to work around possible file-system and permission issues.

solution here If we are using default pagination option like

By default, Yii 2.0 chooses to use the non-minified version of Jquery and Bootstrap files (CSS and JS). However, there's a simple way to indicate Yii to use the minified version.

The number of languages supported by the standard CJuiDatePicker implementation is limited and the language code to use is different from the application's language code. This Wiki shows how to improve on that.

When building PHP web applications you usually have to take care about defining and providing a consistent development and production environment for your team. This includes your application packages, PHP-extensions, database servers and often further components such as a mail server or workers.

I am going to show you an effective way to validate the uniqueness of multiple columns.

some when you need to add checkbox in cgridview and change state of selected rows by additianal parameters. in view :

This article tries to describe the practical techniques of searching by a HAS_MANY relation using ActiveRecord of Yii 2.0.

In this wiki I will show how could wo pass the third parameter to UserIdentity on login authenticate. So we can do separate login authentcation from two or more different models from single login form.

This How-To is useful if you are planning to move the Yii vendor directory outside the default location.

Clearing CGridView filters and sort orders from the web pages, is usefull for the end user. Yii does not seem to propose a standard method. Furthermore, this is especially usefull when filters are "remembered" in the user's session.

The problem is not new: after setting some filters in a grid (typically in admin view), and gone to another page, returning in the grid's page I would like to find the filters with previous setting mantained.

When using themes you want to changes some of the translations specifically to the theme while keeping the standard translations for most of the text. Duplicating the main translation file is a headache for maintainance. This how to provides a solution.