How to secure database passwords in PHP?

Question

When a PHP application makes a database connection it of course generally needs to pass a login and password. If I\'m using a single, minimum-permission login for my applica

Answer 1

Put the database password in a file, make it read-only to the user serving the files.

Unless you have some means of only allowing the php server process to access the database, this is pretty much all you can do.