I have installed \'WampServer2.1e-x32\' stack with addon version of php 5.2.11 . I downloaded apc3.0.19.dll and placed under the directory and required information in php.in
A bit late for user269867, but I found a solution (APC 3.1.9 / 3.1.13) :
You can also follow this :
https://bugs.php.net/bug.php?id=59445
Where it is said :
"If compiling is not an option, roll back to stable: pecl install -f APC-3.1.6"
It is indeed a regression, but it worked fine for me :)
(I also responded that in APC (Alternate PHP Cache) Throwing Lots of PHP Notices)
It looks like all the messages are surrounding phpMyAdmin's libraries directory, does that directory exist? If so, what are the permissions?
I see this error here which seems to be directly related to apc.:
Notice: require_once() [function.require-once]: apc_cache_make_file_entry: entry->data.file.filename is [C:\wamp\apps\phpmyadmin3.3.9\libraries\common.inc.php] in C:\wamp\apps\phpmyadmin3.3.9\index.php on line 35
Also, these aren't errors, but notices, does myadmin function despite these?
Finally, I found this blog post, does this help? It seems like you can disable APC for phpmyadmin.
http://mattiasgeniar.be/2011/01/20/running-phpmyadmin-with-apc-cache-enabled-fatal-php-errors/
Looks like recent builds in windows.php.net are broken too. I've tested:
both from http://windows.php.net/downloads/pecl/releases/apc/, and both had this problem.
If you are stuck on this like I was, go to: http://downloads.php.net/pierre/
And download php_apc-3.1.10-5.4-vc9-x86.zip.
I don't think these errors are actually problems with PHPMyAdmin; they're part of the APC configuration settings. Apparently debugging was enabled. I think this can be resolved via https://stackoverflow.com/a/9032478/263877.
If PHPMyAdmin is the only thing giving you problems, now is the time to switch. I find PHPMyAdmin slow, bulky, and way too many frames. I would recommend you switch to Adminer, it's fast and easy to install.