Redhat / CentOS / Fedora Linux Install XCache for PHP 5

by on November 24, 2007 · 22 comments· LAST UPDATED September 23, 2009

in , ,

How do I install Xcache opcode cacher for PHP 5 under RHEL / CentOS version 5.0 server?

XCache is a open-source opcode cacher, which means that it accelerates the performance of PHP on servers. It optimizes performance by removing the compilation time of PHP scripts by caching the compiled state of PHP scripts into the shm (RAM) and uses the compiled version straight from the RAM. This will increase the rate of page generation time by up to 5 times as it also optimizes many other aspects of php scripts and reduce serverload.

Step # 1: Download xcahce source code

Use wget command to download latest stable release:
# cd /opt
# wget http://xcache.lighttpd.net/pub/Releases/1.2.1/xcache-1.2.1.tar.gz

Step # 2: Untar tar ball

Use tar command:
# tar -zxvf xcache-1.2.1.tar.gz
# cd xcache-1.2.1

Step # 2: Compile and install xcahce

Use phpize command to prepare xcache as a PHP extension for compiling:
# phpize
Configure, compile and install xcache:
# ./configure --enable-xcache
# make
# make install

Default xcache.so installation location

  • 64 bit PHP module installed at /usr/lib64/php/modules/xcache.so
  • 32 bit PHP module installed at /usr/lib/php/modules/xcache.so

Step # 3: Create xcache.ini file

Under RHEL / CentOS, you place php modules configuration at /etc/php.d/ directory:
# cd /etc/php.d/
Create xcache.ini file:
# vi xcache.ini
Append configuration directives:

[xcache-common]
; change me - 64 bit php => /usr/lib64/php/modules/xcache.so
; 32 bit php => /usr/lib/php/modules/xcache.so
zend_extension = /usr/lib64/php/modules/xcache.so
[xcache.admin]
xcache.admin.auth = On
xcache.admin.user = "mOo"
; xcache.admin.pass = md5($your_password)
xcache.admin.pass = ""
[xcache]
xcache.shm_scheme =        "mmap"
xcache.size  =               32M
xcache.count =                 1
xcache.slots =                8K
xcache.ttl   =              3600
xcache.gc_interval =         300
; Same as aboves but for variable cache
; If you don't know for sure that you need this, you probably don't
xcache.var_size  =            0M
xcache.var_count =             1
xcache.var_slots =            8K
xcache.var_ttl   =             0
xcache.var_maxttl   =          0
xcache.var_gc_interval =     300
; N/A for /dev/zero
xcache.readonly_protection = Off
xcache.mmap_path =    "/dev/zero"
xcache.cacher =               On
xcache.stat   =               On

Save and close the file.

Alternatively, you can also copy default xcache.ini to /etc/php.d/
# cp xcache.ini /etc/php.d/
# vi /etc/php.d/xcache.ini

Restart your Apache web server:
# service httpd restart

If you are using Lighttpd web server, enter:
# service lighttpd restart

Step # 4: Make sure xcache is working

Type the following command for verification:
$ php -v
Output:

PHP 5.1.6 (cli) (built: Nov 20 2007 11:11:52)
Copyright (c) 1997-2006 The PHP Group
Zend Engine v2.1.0, Copyright (c) 1998-2006 Zend Technologies
    with XCache v1.2.1, Copyright (c) 2005-2007, by mOo

You should see line "XCache v1.2.1, Copyright (c) 2005-2007, by mOo"

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{ 22 comments… read them below or add one }

1 Vu The Cuong November 26, 2007 at 3:32 am

Currently in Freebsd with php5, apache22 and xdebug2,
xcache could not work with this combination.
Could you figure out to use xcache with above ones?
Thanks

Reply

2 nixCraft November 26, 2007 at 6:47 am

IT only works with the following PHP cvs branches versions (php 5.0 is not supported, get php 5.2)
PHP_4_3
PHP_4_4
PHP_5_1
PHP_5_2
PHP HEAD(6.x)

Reply

3 darshana nilantha January 2, 2008 at 1:06 pm

For me this didn’t work untill I enabled two settings in php.ini file

; Directory in which the loadable extensions (modules) reside.
extension_dir = “/usr/local/lib/php/extensions/no-debug-non-zts-20060613/”

; Dynamic Extensions

extension=xcache.so

Reply

4 Ken Savage April 1, 2008 at 5:04 am

phpize isn’t found on my CentOS4 server.

is there an alternate command?

Reply

5 nixCraft April 1, 2008 at 5:58 am

Ken,

Install php-devel package – which lets you compile dynamic extensions to PHP. This package has phpize command. Use yum command to install the same.

Reply

6 christoforos August 28, 2012 at 2:18 pm

can you pls write exactly what command i have to give ?
thank you very much

Reply

7 christoforos August 29, 2012 at 11:05 am

i gave command phpize => ” command not found”
i gave command ” whereis phpize ” => and display => ” phpize: ”
I gave command
yum -y install php-devel
but display that error

Finished Dependency Resolution
php-devel-5.1.6-39.el5_8.x86_64 from updates has depsolving problems
–> Missing Dependency: php = 5.1.6-39.el5_8 is needed by package php-devel-5.1.6-39.el5_8.x86_64 (updates)
Error: Missing Dependency: php = 5.1.6-39.el5_8 is needed by package php-devel-5.1.6-39.el5_8.x86_64 (updates)
You could try using –skip-broken to work around the problem
You could try running: package-cleanup –problems
package-cleanup –dupes
rpm -Va –nofiles –nodigest

any ideas how to fix this ?
thank you

Reply

8 Christoforos August 30, 2012 at 9:00 am

Is there any solution on that problem , without downgrade php :)

Reply

9 Son Nguyen August 28, 2008 at 3:18 am

Any RPM available for RHEL/CentOS 5?

Reply

10 Dharmaraj.A September 29, 2008 at 3:35 pm

Very nice article. I installed with the help of this. In the middle I faced a problem when run the command ‘phpize’. I got an error like “bash: phpize: command not found”. Instead of ‘phpize’ I run ‘yum -y install php-devel’. Then again I continue from ‘phpize’. It’s installed. Thanx for your article.

-Dharmaraj.A

Reply

11 Jase November 18, 2008 at 9:54 am

Could not get this to work with Apache, MPM Worker and PHP as fastcgi. PHP as mod_php works fine.

Any extra requirement for fastcgi?

Reply

12 Sezai February 10, 2009 at 12:26 pm

Can i use xcache and Eaccelerator at the same time? I use vbulletin also..

PHP 5.2.6 (cli) (built: Sep 3 2008 06:59:35)
Copyright (c) 1997-2008 The PHP Group
Zend Engine v2.2.0, Copyright (c) 1998-2008 Zend Technologies
with eAccelerator v0.9.5.3, Copyright (c) 2004-2006 eAccelerator, by eAccelerator
with the ionCube PHP Loader v3.1.32, Copyright (c) 2002-2007, by ionCube Ltd., and
with Zend Extension Manager v1.2.2, Copyright (c) 2003-2007, by Zend Technologies
with Zend Optimizer v3.3.3, Copyright (c) 1998-2007, by Zend Technologies

Reply

13 nixCraft February 10, 2009 at 1:31 pm

@Sezai,

Only use one of them at a time. Xcache is the best.

Reply

14 Tada Burke September 23, 2009 at 3:42 am

Thank you for the great article! Oh, and in Step #3, there’s a funny typo: xcahce.ini :) Cheers

Reply

15 John December 22, 2009 at 4:22 pm

Hi, I’m facing a few problems.
1: After running #make install,
What gets installed is: /usr/local/lib/php/extensions/no-debug-non-zts
2: #cd /etc/php.d/… php.d is not a directoy in my setup. Where would I look alternitavely?

Reply

16 Scy December 25, 2009 at 10:01 am

/etc/php5/conf.d/

Reply

17 reza November 20, 2010 at 4:31 am

/etc/php5/conf.d/ AND /etc/php5/conf.d/ are not exist !!!!!!!!

Reply

18 Adrian July 26, 2010 at 4:21 am

Hi VIVEK GITE

Great article, after I followed your instructions which were clear I ran the command “php -v” and I got the output below, is my Xcache running as intended? Or do I need to make some adjustments? If so do you have any idea why I got the “PHP Warning: PHP Startup: memcache: Unable to initialize module” error?

Best regards

Adrian
===================
[root@server php.d]# php -v
PHP Warning: PHP Startup: memcache: Unable to initialize module
Module compiled with module API=20050922, debug=0, thread-safety=0
PHP compiled with module API=20060613, debug=0, thread-safety=0
These options need to match
in Unknown on line 0
PHP Warning: PHP Startup: memcache: Unable to initialize module
Module compiled with module API=20050922, debug=0, thread-safety=0
PHP compiled with module API=20060613, debug=0, thread-safety=0
These options need to match
in Unknown on line 0
PHP 5.2.13 (cli) (built: Mar 2 2010 15:56:41)
Copyright (c) 1997-2010 The PHP Group
Zend Engine v2.2.0, Copyright (c) 1998-2010 Zend Technologies
with XCache v1.2.1, Copyright (c) 2005-2007, by mOo

Reply

19 akash September 6, 2010 at 12:03 pm

Works really great…Vivek you rock man.

Reply

20 Ali October 23, 2010 at 6:14 pm

Hi Vivek;
Where do you think wrong?

root@server [~]# php -v
Failed loading /usr/lib64/php/modules/xcache.so: /usr/lib64/php/modules/xcache.so: cannot open shared object file: No such file or directory
PHP 5.2.9 (cli) (built: Oct 20 2010 17:50:30)
Copyright (c) 1997-2009 The PHP Group
Zend Engine v2.2.0, Copyright (c) 1998-2009 Zend Technologies

Reply

21 Jérôme November 19, 2010 at 9:23 pm

Hello,

I am instaling on a RedHat EL4 workstation, with php 5.1.3 and
I have this pb :
/usr/include/php/ext/date/lib/timelib_structs.h:24:28: error: timelib_config.h: No such file or directory

a solution is to just use:

export CFLAGS=-I/usr/include/php/ext/date/lib

before the
./configure –enable-xcache

Reply

22 Jérôme November 19, 2010 at 9:25 pm

Oups , as matter of fact is for php 5.1.2

Reply

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