I have a huge PHP based web application which I am trying to decode. I want to create diagrams like flowchart or any other type (which will be recommended by EE experts) to understand the how exactly is the PHP code being executed and what is happening with the PHP code when a page is opened or a link is clicked or a form is submitted etc.
I am not able to understand where do I start or how do I create the diagrams.
Kindly let me know a tool which can easily help me create the necessary diagrams or any references where diagrams have been created for web applications.
Kindly let me know if any more information is required.
Thanks in advance.