PHP-based Workflow Editor

[AmirBehzad Eslami <behzad.eslami@xxxxxxxxx>]

Dear list,

Java has a lot of tools to implement Workflows, but I'm trying to find a way
to achieve the same results in PHP. It seems that ezComponents has a
Workflow mechanism,
but it lacks the editor.

Is there any PHP-based Workflow Editor?
Do you have any recommendation?

Thank you in advance,
-b