Question

I am trying to find a way to get the source code for (user defined) PHP functions in a string.

For normal code this is easy, using reflection I can find the file and line numbers where the function is defined; then I can open the file and read the function source code.

This will not work if a function is defined in eval’d code. I do not want to keep record of all eval’d code.

Is this possible? If yes, then how?

Example code:

function myfunction() {     echo 'Test'; } eval('   function myevalfunction() {     echo 'Test';   } ');  $a = new ReflectionFunction('myfunction'); echo $a;  $b = new ReflectionFunction('myevalfunction'); echo $b; 

Output:

Function [ <user> <visibility error> function myfunction ] {   @@ test.php 3 - 5 } Function [ <user> <visibility error> function myevalfunction ] {   @@ test.php(11) : eval()'d code 2 - 4 } 

Answer 1

How about you define your own eval-function, and do the tracking there?

function myeval($code) {      my_eval_tracking($code, ...);  # use traceback to get more info if necessary      # (...)      return eval($code); } 

That said, I do share a lot of Kent Fredric’s feelings on eval in this case.