Cacher is the code snippet organizer for pro developers

1) http://www.w3resource.com/php-exercises/php-for-loop-exercises.php
2) https://shafiq2410.wordpress.com/2013/09/08/draw-pyramid-shape-of-stars-in-php-using-loop-structure/
3) http://www.tutorialspoint.com/php/php_object_oriented.htm

Commonly used WordPress plugins:
1) i-theme security
  * directory permission (https://wordpress.org/support/topic/best-permissions-to-set)
  * lockout
  * username/password strong
  * db/files backup
  *
  
2) W3 total cache/ wp super cache
3) akismet
4) contact form 7 & fast and secure form
5) Yoast SEO or all in one seo
6) wp - page navi
7) 

https://wordpress.org/plugins/crayon-syntax-highlighter/screenshots/


Custom Sidebars
Cimy Header Image Rotator
Elegant Builder
Event Manager
Fast Secure Contact Form
Feature a Page Widget
Flexi Pages Widget
Frontend Checklist
GD Star Rating
ImageMapper
MailPress (not upgraded yet)
maxgalleria
My Calender
Network Latest Posts
Omniture Tracking Plugin
Print-O-Matic
p3-profiler.php
Page Links To
PHP Code Widget
Private Only
Private Only, Disable feed (Part of the Private Only)
Private WP
SSO Authentication Lite Edition
sunrise.php
Tablepress
TinyMCE Advanced
TS Custom Widgets
WordPress Importer
WordPress MU Domain Mapping
WordPress Popular Posts
WP Cache Header
WP-PageNavi
WP Recent Views
WP-Serverinfo
WP UI - Tabs, accordions and more

 Dev Extra Plugins =========
Reveal IDs
Spiffy Calendar
Post Tags and Categories for Pages
Elegant Builder
Huge IT Slider

--------Harvested------------
akismet
category-shortcode-w-generator
cimy-user-manager
configure-smtp
custom-post-template
exec-php
Dilemma
json-api
json-api-auth
limit-login-attempts
NextGEN Gallery by Photocrati
podcasting
polldaddy
post-expirator
post-notification
qa-lite
subscribe2
widget-manager-light
wordpress-https
wp-optimize
wp-wall

---------themes-
coroline
divi
foxy
gazette
businesspress
Lucid
nimble

--------mysql faq -------------
http://career.guru99.com/top-50-mysql-interview-questions-answers/
http://narendra86.blogspot.in/2013/10/top-80-sql-query-interview-questions.html
http://www.tecmint.com/basic-mysql-interview-questions-for-database-administrators/
http://www.careerride.com/MySQL-Interview-Questions.aspx
http://www.javatpoint.com/mysql-interview-questions
http://www.testingbrain.com/interview/mysql-interview-questions.html
http://www.techinterviews.com/29-mysql-interview-questions
http://a4academics.com/interview-questions/53-database-and-sql/397-top-100-database-sql-interview-questions-and-answers-examples-queries