What is php user authentication?

[amadeo]

I,

I am learning PHP but the basic question with me is PHP user authentication.

What is this? Is it different from normal login to any website?

If yes then what is different in this case?

[Kr8zyCanuck]

PHP lets programmers create web pages with dynamic content that can interact with databases. In this way, it helps makes web pages more interactive, thus improving the user experience.

[Vincenzo]

Following are are some PHP user authentication methods

1. Basic authentication
Here Username & password combination is hard code in login script only.

2. Username & password stored in Database.
In this method the Username & password is stored in the database only.

3. USer Authentication with image verification
This method prevents any type of automatic login by a robot (external script)

[amadeo]

easiest way is to use a db table and verify against it like a mysql table, makes it much easier to add users and validate them too. Get MYSQL from www.mysql.com

More about authentication: http://www.php.net/manual/en/features.http-auth.php