I was recently assigned with the task of integrating several extensive forms into a WordPress website. These forms comprised numerous fields, intricate validation rules, dynamic fields (one to many relationships) and even interdependencies, where employing PHP inheritance could mitigate code duplication.

There are Multiple Ways to Create a Validator But here we use Regular Expression or JavaScript Regular Expression or RegExp for Creation Validators. In this article, we will see the most Frequently Used Expression

You have a 'Category' model with Id, Name and Visibility (boolean, where 0 = Public, and 1 = Private).

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.

The only differences in Yii 2 is that its much simpler due to available functions in the Model class for loading and validating models.

While rewriting the PcReportContent extension I'm maintaining I've bumped to a challenge. This wiki was born out of it.

1) include the fancybox extesion otherwise fancybox js

When you're filling up a form of a CActiveRecord (using CActiveForm for example), usually you'll construct your code so that in case of validation error you'll get back the form with the error displayed back to you, typically when CActiveForm.errorSummary() is used. This is how its done by Gii.

This article explains how to easily turn standard text-line validation errors into beautifully and professionally looking Twitter Bootstrap's Popovers.

A time ago i've met the issue that Yii doesn't run any client-side form validation when submitting the form by CHtml::ajaxSubmitButton. The small javascript below helps to fix it.

This is a tutorial to work with radioButtonList which will handle enum datatype. Form design and validation both are detailed here.

A common source of confusion among new Yii users is how the 'safe' validator works, how it works with other validators, and why it's necessary in the first place. This article means to clear up this confusion, as well as explain the notion of Massive Assignment.

Checkboxes have two possible values, true and false, but some applications require that the user select one particular value before proceeding. Examples might be:

This is a reference to be used for Model rule validation and is compiled from the Yii documentation and code. The purpose is to have all the information gathered in one place instead of scattered. This reference is not an intro. See The Definitive Guide to Yii, Declaring Validation Rules for a tutorial.