Re: Re: PHP 4.0 Bug #7080 Updated: Recusive Include()s crash system

Under Windows PHP handles stack overflows. UNIX is an older operating system and doesn't give you anyway that I know of to really cope and recover from stack overflows. We have discussed putting a limit on recursive include()'s in the past but it would mean adding code and an arbitrary limit (which would be quite meaningless) to the execution function. Andi At 05:00 PM 10/10/00 -0700, Harold Paulson wrote:

Hi, I just wanted to follow up on this a bit.. Your first point is quite correct. I have indeed set resource limits for apache (and every other daemon I'm running). The limits that were set by default on my box were infinite. Yes, it is my fault that I didn't know this and fix it beforehand, but how often is it the case? How many of the web servers out there are set up similarly? Most of them, I would suspect, have this defect, since it's the default in at least FreeBSD and RedHat. This is their problem, and I think they should fix it, but we must admit that it is the status quo of the web today. In reference to your second suggestion, include_once() is neat, I'll start using it, but...I can't be the only sysadmin who isn't the sole developer on his server? I think PHP would be a more stable tool if maybe it featured an 'include_limit' directive in php.ini, or somesuch. I can imagine situations where a developer might want to include a file more than once, but...more than a thousand times? Thanks for your time.

        - H

On 10 Oct 2000, Bug Database wrote: ID: 7080 Updated by: stas Reported By: haroldp@internal.org Status: Closed Bug Type: Reproduceable crash Assigned To: Comments: First of all, you probably need to use resource limits. Second, you have include_once for this - use it. Previous Comments: --------------------------------------------------------------------------- [2000-10-07 20:36:26] haroldp@internal.org Include()ing a file that Include()s itself - ie, a recusive Include() - will completely crash a system. Not just the web server, it ran my box out of swap in a few seconds and required a power cycle. Could we get some sanity checking on this? I had a web designer's *typo* bring a ssytem to its knees. --------------------------------------------------------------------------- Full Bug description available at: http://bugs.php.net/?id=7080 -- PHP Development Mailing List <http://www.php.net/> To unsubscribe, e-mail: php-dev-unsubscribe@lists.php.net For additional commands, e-mail: php-dev-help@lists.php.net To contact the list administrators, e-mail: php-list-admin@lists.php.net

--- Andi Gutmans <andi@zend.com> http://www.zend.com/