How to safely store a password inside PHP code?

Question

How can I have a password inside PHP code and guarantee that no one viewing the page in the browser can retrieve it?

Is:

Answer 1

There are noumerous ways of doing this. However, people will not be able to view the password you stored (as plain text) in a PHP file, since PHP is a server side language which means that, as long as you don't print it out to the browser, it will remain invisible.

So it's 'safe'.