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.

solution here If we are using default pagination option like

yii rights some tips..

Does your application need to know user's details on browser details, os and device type? We can use PHP's misc. function to achieve that provided you have an update copy of browsercap.ini

Modern browsers support SVG, older browsers do not. This replacement for CHtml::image() allows you to handle to propose SVG in an efficient way with PNG as a fallback.

First of all, install yii2 basic template according below link:

There are cases that model validators should be depended by controller/action and you couldn't manipulate on the model class or using scenarios in easy way

We will leverage Yii2-excelview widget. So, first of all is install Yii2-excelview:

In yii2 we can create form without create FormModel. Here we go

this is my way for embed js code block in view file:

Efficient coding with Yii implies efficient use of the code generator. This article shares the personalised Gii templates that were built starting from the standard templates proposed by AweGen.

Yii has a neat "trick" that will assign default values to new CActiveRecords. When performing a search() though, this is pretty annoying as they automatically apply as filter values.

Generally we need to show one or more fields from a model that is related to another model used in CGridView. For our case we will use two related models, which explain how to use model "A" fields in a CGridView that used model "B".

The yii2-field-range extension enables you to easily setup ActiveField range fields with Bootstrap styling. You basically can setup two attributes joined together like a single field with combined validation error block.

There are cases that you want to make an ajax request to another server and get the results.

So, you have installed a brand new Yii 2 app (basic) or (advanced). Here are a few tips for Apache web server users to get things running more secure and better with your yii2 app.

This topic is related with langhandler extension

The tips here are for advanced usages of composer and its assumed you have read about using composer and have a knowledge of your vendor packages to be updated. Let's consider, you want to update only one specific yii2 vendor library, without updating all the other extension packages?

Ok, you have installed a Yii 2 basic or advanced app for the first time and completed the post install steps. You have picked up a few extensions to install for the first time as well. You would already see a composer.lock file in your application root folder.