Magento 2 module development Series

Magento 2 – Helloworld – Module Development Part 1
Magento 2 – Helloworld – Module Development – Layout/Block
Magento 2- Helloworld – Add new table and access using model
Magento 2- Helloworld – How to Join Tables in Magento 2
Magento 2 – HelloWorld – Create Event and Observer

Useful Magento Sniplet

Magento 2 Complete Guide to add a product programmatically
Magento2 Add/Create and Get custom customer attribute value
Magento 2 Programatically Change Category Attribute For All Store View
Magento2 Service Temporarily Unavailable issue
Magento 1 Add External Url To Menu Admin
Magento 1 Auto Shipping According To Lowest Price
Magento 2 Show Color Swatch On Product Compare Page
Code To Show Different Mode List Or Grid For Different Category
Magento 2 Add Custom Tab To Customer Edit Page In Admin Panel
Magento 2 Add A Grid To Custom Tab
Magento 2 Add Url To Column And Button
Code To Show Different Mode List Or Grid For Different Category
Magento 2 Send Email
Magento 2 Send PDF
Magento 2 show different number of product for every category page

Magento 2 Extension

Magento 2 QRCode generator extension

Magento 2 In Depth

Magento 2 Request Flow
Magento 2 Routing
Debugging and Customization of Mini Cart

Magento 2 command line Usage

Magento 2 Enable, Disable, Clean, Flush Cache Using CLI

Interview Question

Star Pattern Program
PHP Series Program
Magento Interview Question Part-1
Magento Interview Question Part-2
Magento Interview Question Part-3
OOPS based interview question in PHP

Basics of Software Testing

Software Testing-Overview
Unit Testing
Integration Testing
Acceptance Testing

Useful PHP Sniplet

How to configure Varnish cache on SSL
Xls or Excel to XML conversion using PHP
CSV to XML Conversion using PHP
Xls or Excel to JSON conversion using PHP
CSV to JSON Conversion using PHP

Drupal Code Sniplet

Field template in Drupal
How to create sub tab in Drupal 7
6 Biggest Drupal mistake