title: PHP Source Code "Mapping"
body: <p>I was wondering if anyone knew of a program that could accept a directory of php files and analyze them so that every function, variable, etc. has links to where it is defined, referenced, etc. so that I can quickly determine the purpose/use of a function. I know that RIPS does something similiar to this but it is primarily a vulnerability analysis tool. I would prefer not to have to pay for it if possible.</p>