How to Check User Password in PHP?

How to Check User Password in PHP?

Checking user password in PHP involves securely verifying the password provided by the user with the stored hashed password in the database. Here's a step-by-step guide to accomplish this task:

1. Retrieve the hashed password stored in the database for the user.
2. Take the password input from the user.
3. Hash the user input using the same algorithm used for storing passwords in the database.
4. Compare the hashed user input with the stored hashed password.
5. If the two hash values match, the passwords are the same, and the user is authenticated.

It is crucial to follow best practices like using a secure hashing algorithm (such as bcrypt), adding a unique salt to each password before hashing, and using prepared statements to prevent SQL injection attacks.

By following these steps and best practices, you can effectively check a user's password in PHP while maintaining security.