How to prevent form hijacking in PHP?

1. Create register_globals to off to avert Form Injection with malicious data.

2. Make Error_reporting to E_ALL so that all variables will be initialized earlier than using them.

3. Make perform of using htmlentities(), strip_tags(), utf8_decode() and addslashes() for filtering malicious data in php.

4. SQL injection attacks by using mysql_escape_string().

5. User Input Sanitization-Never belief web user submitted data. Follow best client side data validation performance with normal terms before submitting data to the supply.

6. Form Submission Key Validation: A singleton technique can be used to create a session form key & validating form being submitted for the equal value alongside hidden form key parameters.

Good Tips, Sophia, your explanations about how to prevent form hijacking in PHP are very detail, and easy to understand. Thank you.

I would like to recommend encrypting data with a strong generation sequence wherever possible, in order to increase security. Also, in order to make the data secure from naive brute-force attackers, specific techniques can be put in place.