PHP Interview Questions Experienced

Regular PHP

1) Difference between PHP 4 & 5

2) Sessions & cookies

3) Diff Between MyIsam & INNODB Storage Engines

4) Left Join and Right Joins

5) Can you suggest any Query optimization techniques ?

6) Diff b/w Char & Varchar

7) Why use Enumeration Data type ?

8) How to use Fulltext ?

9) Connect & pConnect difference

10) Magic mathods __call, __set, __get, __constructss

11) Define vs Const vs Final

12) What are the error types in php

13) Why use ob_start()

14) What use Final Keyword ?

12) Why use and how to use Static methods ?

13) Abstract vs Interface

14) How to Call the parent constructor in side the constructor

15) What is the importance of __autoload ?

Codeigniter Framework

1) What is the different between Codeigniter 2 & Codeigniter 3

2) Explain Codeigniter Application Architecture ?

3) Can you explain Active Records ?

4) How to call the sessions ?

5) Diff B/W helpers and Libraries

6) How to call Multiple Database in Codeigniter ?

7) How to load the Languages ,libraries and helpers

8) What is the importance of Hooks ?

9) How to use joins in Codeigniter

10) How to implement the URL routing in codeigniter ?

11) How many ways to store the sessions in Codeigniter Application ?