No www on google SERP for my website

[Halim]

Hello,

Just a week ago I submitted my website to Google.

My website shows up on Google SERP, but google only shows domain.com instead of www.domain.com.

What should I do to make Google show the full URL www.domain.com?

Thank you.

[phranque]

you have to implement a domain-wide 301 redirect.
what type of server are you using?

[Halim]

It's a Linux server (PHP)

[phranque]

web server:
apache?