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Bug #57409 PHP Memcache::get modifies his second argument
Submitted: 2006-11-30 18:02 UTC Modified: 2006-11-30 18:16 UTC
From: mmc at lavela dot hu Assigned:
Status: Closed Package: memcache (PECL)
PHP Version: 4.4.4 OS: linux
Private report: No CVE-ID: None
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From: mmc at lavela dot hu
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 [2006-11-30 18:02 UTC] mmc at lavela dot hu
Description:
------------
print   "key:$key<br>";
memcache_get($server,$key);
print   "key:$key<br>";

And it returns:
key:sql/select field from table where xyz...
key:sql/select_field_from_table_where_xyz...

It seems memcache_get modifies his second argument.

As I checked now, Im not the first experiencing this:
http://www.php.net/manual/en/function.memcache-get.php
(see notes)

This is a feature or a bug?

(After 2 hours debuging i choose bug... :-)

I tried to workaround:
$tmp=$key;
print   "key:$key<br>";
memcache_get($server,$tmp);
print   "key:$key<br>";

Same response:
key:sql/select field from table where xyz...
key:sql/select_field_from_table_where_xyz...

$tmp=$key.'';
worked finaly.

It seems it changing only if argument can be usable as a reference.
And handles well if not:

memcache_get($server,$key.'');
works fine.

memcache_set seems to have the same behaviour.
(probably other functions too)


(I sent this email to the memcached mailing list. They forwarded me here.)


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 [2006-11-30 18:04 UTC] mmc at lavela dot hu
(PHP version is 4.4.4 not 4.4.3 sorry)
 [2006-11-30 18:16 UTC] tony2001 at phpclub dot net
This bug has been fixed in CVS.

In case this was a documentation problem, the fix will show up at the
end of next Sunday (CET) on pecl.php.net.

In case this was a pecl.php.net website problem, the change will show
up on the website in short time.
 
Thank you for the report, and for helping us make PECL better.

http://news.php.net/php.pecl.cvs/6716
 
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