如何使用PHP从Sharepoint 2013获取当前阶段

I want to make a website using following sharepoint api: http://zurb.com/forrst/posts/PHP_Read_and_write_to_SharePoint_Lists-PRF

I can easily retrieve my list, I can color or do whatever to that information in that list, but I want to get the current step of the workflow and make a red box under it and after is done a green box around it with arrows between them, to show they are connected. Is this something that can be done using PHP?

Thank you.