How to install composer on godaddy shared hosting?

I know this question is quite old, but I've been looking for an answer to it for a while and just got it answered, so here it is.

Can you install composer on a Godaddy shared hosting: no you can't.

BUT

Godaddy Shared hosting used to use a legacy control panel. If your shared hosting account is old, you are most likely using it. But, Godaddy has moved to cPanel for Linux hosting and all new Linux shared hosting purchases now come with it. The good news is, there is a version of Composer installed on these accounts (currently it's 1.1.1).

Follow this link to see software versions on Godaddy's hosting accounts.

I was on the phone with Godaddy's tech support, and they confirmed that Composer was installed out-of-the-box for cPanel hosting accounts.

Hope that helps.