FIXME: This documentation is not up to date!
Get a description of the current call stack.
The description is returned as an array with one entry for each call
frame on the stack.
Each entry has this format:
Array |
string file | A string with the filename if known, else zero.
|
int line | An integer containing the linenumber if known, else zero.
|
function fun | The function that was called at this level.
|
mixed|void ... args | The arguments that the function was called with.
|
|
The current call frame will be last in the array.