Accessing local host through iPhone

Hi,

I am having some issues with images not loading on my webpage from a mobile phone (live server).

I have built my website using WP and MAMP downloaded to my computer. I want to be able to test the mobile output using the local host server. Both my phone and computer are Mac products. Both are connected to the same wi-fi.

How can I access my local server with my iPhone?

I have tried different tutorials online and none of them seem to work.

Thanks.