Re: RE: A slightly amusing, though mostly dangerous, endless loop

It's automatically enabled, and I don't think it's available for disabling. I recall hearing something about a feature being added to PHP to help prevent infinate loops, and it apparently works with print_r. It should probably be listed more prominately and in any place where $GLOBALS is mentioned. The first time I saw it I was thinking, "Geeze, this page sure is taking a long time to load...and why are so many variables available on this site..." -- Plutarck Should be working on something... ...but forgot what it was. ""Greig, Euan"" <Euan.Greig@brann.com> wrote in message news:5CEAD14A5163D211A21B0008C724629401C8D7F0@ciren-mbx1.BRANN.CO.UK... > Is the anti-recursion feature you mention automatically activated or do you need to configure it to take effect? > > This error with print_r is documented in the manual, but would still be (have been) an easy trap to fall into! > > -----Original Message----- > From: Plutarck [mailto:aemuli@spamclause-yahoo.com] > Sent: 14 April 2001 12:59 > To: php-general@lists.php.net > Subject: A slightly amusing, though mostly dangerous, endless loop > > > This is a bug which was apparently fixed in v 4.0.4pl1 at least, but it > still present in 4.0.3 > > I just found it kind of amusing and it makes a nice warning. > > Consider this: > > print_r($GLOBALS); > > > That's it. It prints all the variables available, however part of it is an > array called GLOBALS. Which then prints all available variables, including > an array called GLOBALS... > > And it will continue until you hit the Stop button or until the script times > out. But if you have ignore.user.abort on, it will continue till it times > out. If you've screwed with your scripts timeout settings... > > ...so be wary of that, and ensure you don't try and print out the variables > available in GLOBALS in older versions of PHP. It was fixed with the > anti-recursion feature, which automatically breaks endless loops. > > > > -- > Plutarck > Should be working on something... > ...but forgot what it was. > > > > > > > ************************************************************************** > Any opinions expressed in this email are those of the individual and > not necessarily the Company. This email and any files transmitted with > it, including replies and forwarded copies (which may contain alterations) > subsequently transmitted from the Company, are confidential and solely for > the use of the intended recipient. If you are not the intended recipient > or the person responsible for delivering to the intended recipient, be > advised that you have received this email in error and that any use is > strictly prohibited. > > ************************************************************************** > > -- > PHP General Mailing List (http://www.php.net/) > To unsubscribe, e-mail: php-general-unsubscribe@lists.php.net > For additional commands, e-mail: php-general-help@lists.php.net > To contact the list administrators, e-mail: php-list-admin@lists.php.net >