My application in PHP want to use activity for BPM. I am planning to use the rest API to communicate to activiti from PHP application. I need to use some custom logics in the PHP application during the execution of process. what is the best way to communicate to PHP application from activiti?
Im not sure I'm following … but you said it yourself, use REST. Activiti only understands Java or scripting (groovy, javascript, ..) as scripting language.