Re: [Phpslash-devel] Very minor debugging suggestion for lib.resources.php

[Matthew L. <lei...@ma...>]

Hi,

Still unpacking but checking e-mail...

On Thu, 10 Jul 2003, Joe Stewart wrote:

> On Thu, Jul 10, 2003 at 10:57:39AM -0400, Mike Gifford wrote:
> > Howdy,
> >
[snip!]
> > You can't pass arrays to the debug function very well..  I
suppose you
> > could serialize them so
> > 	debug('List of classes',serialize(get_declared_classes()));
> >
> > In anycase just a thought..
> >
>
> Hey Mike,
>
> debug() should have no trouble outputting arrays.  This works fine for me:
>
> 	debug("declared_classes", get_declared_classes());

I agree.  debug() got rewritten for 0.7 to recurse through arrays and
objects.

> What is the value of debug.max_recursion_level in config.ini?
>
> 	debug.max_recursion_level = 10

This was a guard against circular references.  Consider:

$a = new Parent;
$b = new Child;

$a->children[] =& $b;
$b->parent =& $a;

debug("a",$a);

This would go on indefinitely without either (a) a check for circularity
or (b) a maximum level to recurse to.  I didn't really know how to do (a)
so I built in (b).  I believe if you set
$_PSL['debug.max_recursion_level'] to something negative then you can get
arbitrary recursion (with no circularity checks).

But anyway, the array returned from get_defined_classes should only be
one-dimensional, so 10 is fine for the purpose!

--Matt
----------------------------------------------------------------
Matthew Leingang		617/495-2171
Harvard University		lei...@ma...
Department of Mathematics	"This signature needs no quote."