downloads | documentation | faq | getting help | mailing lists | licenses | wiki | reporting bugs | php.net sites | links | conferences | my php.net

search for in the

Runtime Configuration> <Requirements
[edit] Last updated: Fri, 10 Feb 2012

view this page in

Installation

This » PECL extension is not bundled with PHP.

Information for installing this PECL extension may be found in the manual chapter titled Installation of PECL extensions. Additional information such as new releases, downloads, source files, maintainer information, and a CHANGELOG, can be located here: » http://pecl.php.net/package/apc.

A DLL for this PECL extension is currently unavailable. See also the building on Windows section.

Note: On Windows, APC needs a temp path to exist, and be writable by the web server. It checks the TMP, TEMP and USERPROFILE environment variables in that order and finally tries the WINDOWS directory if none of those are set.

Note: For more in-depth, highly technical implementation details, see the »  developer-supplied TECHNOTES file .



Runtime Configuration> <Requirements
[edit] Last updated: Fri, 10 Feb 2012
 
add a note add a note User Contributed Notes Installation
Anonymous 24-Jan-2012 01:16
On my Debian Squeeze 64-bit I also had to install the package "apache2-threaded-dev" with this command "apt-get install apache2-threaded-dev". Afterwards I did "pecl install apc" and everything seemed to work fine.
scarywound at gmail com 22-Nov-2011 01:45
Pay attention to the fact that installing php-apc package gives you APC version 3.1.3p1, which is according to http://pecl.php.net/package/APC UNSTABLE. If you want the latest STABLE edition (3.1.9 by now), you should use 'sudo pecl install apc' instead.
brian at diamondsea dot com 17-Jun-2011 09:34
When installing on Plesk and cPanel machines, I get the following error message:

[root@web1 ~]# pecl install apc
downloading APC-3.1.9.tgz ...
Starting to download APC-3.1.9.tgz (155,540 bytes)
.................................done: 155,540 bytes
54 source files, building
running: phpize
Configuring for:
PHP Api Version:         20041225
Zend Module Api No:      20060613
Zend Extension Api No:   220060519
/usr/bin/phpize: /tmp/pear/temp/APC/build/shtool: /bin/sh: bad interpreter: Permission denied
Cannot find autoconf. Please check your autoconf installation and the
$PHP_AUTOCONF environment variable. Then, rerun this script.

ERROR: `phpize' failed

The problem is caused by the /tmp/ filesystem being mounted noexec, which keeps any programs on /tmp/ from being allowed to be executed, which breaks the install script. 

To remount /tmp/ as executable, use:

[root@web1 ~]# mount -o remount,exec,suid /tmp

The it should install correctly.

After the install is done, remount the /tmp/ filesystem with the noexec permissions reset.

[root@web1 ~]# mount -o remount,noexec,nosuid /tmp
pr at outwit dot com 15-Aug-2009 04:11
Installed successfully on different FreeBSD servers, with mmap and IPC semaphores, but I got an error on a 64 bits box :

apc_sem_create: semctl(65536,...) failed: Result too large

I had to increase maximum semaphore value :

# sysctl kern.ipc.semvmx=131068
kern.ipc.semvmx: 32767 -> 131068
# echo "kern.ipc.semvmx=131068" >>  /etc/sysctl.conf

Works like a charm.
toby at telegraphics dot com dot au 04-Apr-2009 12:04
On Gentoo,

# emerge pecl-apc

Check installation:

 $ php -r 'phpinfo();' |grep apc
additional .ini files parsed => /etc/php/cli-php5/ext-active/apc.ini,
apc
apc.cache_by_default => On => On
apc.coredump_unmap => Off => Off
apc.enable_cli => Off => Off
apc.enabled => On => On
apc.file_update_protection => 2 => 2
apc.filters => no value => no value
apc.gc_ttl => 3600 => 3600
apc.include_once_override => Off => Off
apc.max_file_size => 1M => 1M
apc.num_files_hint => 1024 => 1024
apc.report_autofilter => Off => Off
apc.rfc1867 => Off => Off
apc.rfc1867_freq => 0 => 0
apc.rfc1867_name => APC_UPLOAD_PROGRESS => APC_UPLOAD_PROGRESS
apc.rfc1867_prefix => upload_ => upload_
apc.shm_segments => 1 => 1
apc.shm_size => 30 => 30
apc.slam_defense => 0 => 0
apc.stat => On => On
apc.stat_ctime => Off => Off
apc.ttl => 7200 => 7200
apc.user_entries_hint => 4096 => 4096
apc.user_ttl => 7200 => 7200
apc.write_lock => On => On
suhosin.apc_bug_workaround => Off => Off
61924 dot 00 at gmail dot com 11-Dec-2008 11:23
sudo apt-get install php-apc
sudo /etc/init.d/apache2 restart

Was enough for me. I use Ubuntu Server 8.10.
Anonymous 25-Jul-2008 05:18
On Ubuntu I had to install the apache2-threaded-dev package.  It's the the Etch repos.
consistency 23-Jul-2008 03:07
debian etch installation

apt-get install apache2
apt-get install libapache2-mod-php5
apt-get install php-pear
apt-get install php5-dev
apt-get install make
apt-get install apache2-prefork-dev
pecl install apc

apache2-prefork-dev is necessary for not having the
"Sorry, I was not able to successfully run APXS."
error

 
show source | credits | sitemap | contact | advertising | mirror sites