When I said process I meant request. Sorry. Is it possible that the PHP
globals are being used across requests (i.e., within the same process)? We
noticed this when upgrading from a version of PHP (4.0.6?) prior to the new
super-globals being added to PHP 4.1.2.
The code in this case is so straightforward that I can't see any other
explanation. The variable in question comes from the URL. For example, if the
URL is http://foo.com/page.php?var=abc, $var in the PHP is a different value
in these rare cases. And the variable we use here is in a very specific
format and it is a valid value just that it's a different value from the one
in the URL.
Also note that we've only seen this problem when the variable has a longer
string than the one in the URL. Using the URL from the above example again,
$var has a value like abcdef which is valid value but longer (in addition to
being wrong). It's as if PHP is re-using memory from a previous request and is
not truncating the string properly for the next request.
Does that make more sense? Possible?
Rasmus Lerdorf [EMAIL PROTECTED] wrote:
I don't see how. But if what you are saying is actually happening, then
it is a Linux kernel-level bug if memory is leaking from one process to
another. No matter how badly we screwed up in PHP, the kernel prevents
such a screwup from infecting a separate process.
I'd suggest having a close look at your code.
-Rasmus
On 30 Jun 2002 [EMAIL PROTECTED] wrote:
We are seeing a rare bug that seems to imply that there is a bug in PHP's
global variables across httpd processes. To make a long story short, it
appears that on rare occassions our script gets the value of a HTTP_GET_VARS
variable from another user's process. Is this possible? BTW, it seems to occur
when using HTTP_GET_VARS and the new 'super globals'.
FWIW, we're using PHP 4.1.2 on (Red Hat) Linux 2.4.9 with Apache 1.3.12.
Thanks!
(please reply via email in addition to posting here if possible)
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