[pmwiki-users] php 5.2.1 problem (serious)

[Henrik]

Is the backtrack limit a *count* or a *size*? If it's size it makes 
sense, if a count, I don't see your current (2.1.26) exceeding the 
default of 100,000...

Not clear from http://ca.php.net/pcre

Patrick R. Michaud wrote:
> On Mon, Mar 19, 2007 at 11:59:27AM -0400, Henrik wrote:
>   
>> Dominique Faure wrote:
>>     
>>>> On Mon, Mar 19, 2007 at 10:43:57AM -0400, Henrik wrote:
>>>>         
>>>>> More info:
>>>>>
>>>>> If I turn off the group header of the large page (the group header
>>>>> contains (:if:) directives to be parsed), then the page renders.
>>>>>           
>>> Is it related to this?
>>>
>>> http://bugs.php.net/bug.php?id=39405
>>>       
>> Quite possibly, though it might be recursion in that case. Why is the 
>> bug marked as status "Bogus"?
>>     
>
> The PHP team marked the bug report as "bogus" because PHP is working
> exactly as it's supposed to in this case, by limiting regular
> expression backtracking.  In other words, the _report_ is bogus
> because the observed behavior isn't a bug in PHP.
>
> However, this does point to another possible solution -- try
> setting in local/config.php:
>
>    ini_set('pcre.backtrack_limit', 1000000);
>    ini_set('pcre.recursion_limit', 1000000);
>
> and then see if the large pages work.
>
> I'm still expecting that the problem is solved altogether by the
> changes I made to (:if:) handling in 2.2.0-beta .
>
> Pm
>                                                   
>
>   

-- 

Henrik Bechmann
www.bechmann.ca
Webmaster, www.dufferinpark.ca