1: DRUPAL 7 AND 8 DIFFERENCE
2: DRUPAL NODES
3: DRUPAL VIEWS
4: DRUPAL CACHE
5: HOW CACHE WORKS
6 HOW TO IMPROVE PERFORMANCE OF DRUPAL
7: CONDITIONAL FILTERS IN IN VIEWS IN DRUPAL
8: PDO IN DRUPAL
9: IMPLODE &EXPLODE DIFFERENCES
10: TRUNCATE & DROP DIFFERENCES
11: HOW TO IMPROVE SPEED OF MYSQL
12: DIFFERENCE BETWEEN GET AND POST
13: Hooks in Drupal. and how does hook work
14: Basic command of GIT
15: Command to commit GIT code.
16: How to optimize MYSQL queries
17: Where are session stored. How to remove session.
18: DIFFERENCE between unlink and unset in PHP
19: What are webservices and How do you consume an API in PHP
