[pmwiki-devel] Internal server error message

[Petko Yotov]

After consideration, there shouldn't be a problem with the global 
$Cursor variable, or {$$PageCount} etc., as the "parent" pagelist has 
already output the full wiki markup before that wiki markup (and any 
nested pagelists it contains) is processed.

Nevertheless, we should be careful when using nested pagelists as they 
can potentially output a lot of data. A misused template can easily 
create an infinite loop using all server resources leading to a fatal 
PHP error or to a server error. I'm not sure how this could be prevented 
- maybe the same way we limit the number of included pages and nested 
PTVs - with a global or static counter.

Petko

On 09.10.2014 21:39, StefCT wrote:
> On 10/08/2014 10:22 PM, Randy Brown wrote:
>> 
>> I do find that a pagelist template that invokes another pagelist can 
>> be
>> a /very/ useful technique. Would it be hard to make that work in some
>> future version of PmWiki?
> 
> I think I have repeatedly used nested pagelists but haven't encountered
> any problems so far.