PHP Security - How to Add Security in your Website

We have described PHP Register Global Variable, CSRF, Cross Site Scripting, SQL Injection, Spoofed Forms, Session Fixation, Session Hijacking, Sessions Cookie security, Shared Server Risk, Improve Ajax call, Mime Type check, Captcha Security, PHP ini Setting with the help of code snippets.

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PHP Security Questions & Answers:

1. How can I read request-headers in PHP.
2. How can I prevent SQL-injection in PHP?.
3. What is Best method for sanitizing user input with PHP?.
4. Difference between Notice and warning and fatal error.
5. How can I prevent SQL-injection in PHP [SOLVED].
6. PHP Register Globals.
7. PHP Sessions and Cookie and Security.
8. PHP Check Mime Type of File - Return Information About A File.
9. Improve Ajax Performance.
10. PHP Captcha Code Example Code Snippets.
11. PHP - Secure Ajax Call from Hackers - Example.
12. htaccess code snippets example.
13. Manage Cron Job with PHP - SSH2 Connection.
14. Shared Server Security Risk open_basedir disable_functions disable_classes.
15. Spoofed Forms - Stop Spoofed Form Submissions.
16. Session Fixation.
17. Session Hijacking.
18. openssl private encrypt.
19. Cross Site Request Forgery.
20. SQL Injection Attack - PHP & MySQL.
21. Cross-Site Scripting - cross site scripting examples.
22. PHP INI settings.