Re: *crash* on try to find out how many nesting levelsare allowed

On Sun, 9 Jul 2000, Andi Gutmans wrote: > >Stanislav Malyshev wrote: > > > > > > w>> I wanted to find out how many nesting levels are allowed, but after > > > w>> class "a" gets instanciated from inside of "b", PHP > > > w>> crashes, that > > should > > > w>> not be. > > > > > > And what did you expect? You tried to crash it, you succeeded. Infinite > > > recursion leads to crash. Try it in C, you get the same. I believe his point was that it crashed after _3_ levels of recursion, and not _infinite recursion_ ... Then again, his code might not limit the number of recursions the way he expects it to (i.e. a bug in his PHP script.) > Your attitude is also incorrect. It can only be fixed, as far as I know, by > adding code which will limited the amount of recursive function calls. This I seem to remember that there at some point _was_ a limit to the number of recursions you could have in PHP - IIRC, several people in #PHP complained because their scripts exceeded the (at the time) limit of 500 (?) frames on the "stack"... (500 levels of recursion) > In my opinion, we are better off leaving it the way it is for now although > for multi-threaded servers we might want to enable the *slow* approach. > Anyway, maybe the best is not to write infinite recursion? The best is always to not write infinite recursion - but wouldn't it be beneficial for PHP to somehow protect against infinite recursion... Set an arbitrary limit to the number of recursions - possibly a configure option in php.ini... -- Dominic J. Eidson "Baruk Khazad! Khazad ai-menu!" - Gimli ------------------------------------------------------------------------------- http://www.the-infinite.org/ http://www.the-infinite.org/~dominic/