PHP echo tab

I’m writing PHP with Atom, for first time. I saw it have PHP package by defaut, but it doesn’t have a lot of customisation.
I often use the echo [TAB] function, and it gives me this: echo "string";.
Do you have any ideas, how I can change the double brackets to single -> echo 'stiring';?

Start here:

Open up the language-php package’s snippets in github and copy the echo snippet to your snippets file. Then edit it to your liking.