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

I generally do not trust raw PHP code for passwords for services. Write a simple PHP extension to release the password. This ensures that the working set is password free, and it makes it an extra step for a compromised machine to grant access to the hacker to the service.