Tested this on a Fedora 8 server with the IP address 192.168.1.12 where Apache2 and PHP5 are already installed and working. Apache’s default document root /var/www/html in this article is for demonstration purposes. Of course, you can use any other vhost as well, but you might have to adjust the path to the phpinfo.php file.
2 Checking PHP5’s Current State
First, before we install XCache, let’s find out about our PHP5 installation. To do this, we create the file phpinfo.php in document root /var/www/html
vi /var/www/html/phpinfo.php
<?php
phpinfo();
?>
Afterwards, we call that file in a browser: http://192.168.1.12/phpinfo.php
Installing XCache
yum install php-devel
yum groupinstall ‘Development Tools’
yum groupinstall ‘Development Libraries’
Next we download and uncompress the latest XCache version:
cd /tmp
wget http://xcache.lighttpd.net/pub/Releases/1.2.2/xcache-1.2.2.tar.gz
tar xvfz xcache-1.2.2.tar.gz
Then we go to the new XCache source directory…
cd xcache-1.2.2
… and build XCache as follows:
phpize
./configure –enable-xcache
make
make install
Next we copy xcache.ini to the /etc/php.d directory:
cp xcache.ini /etc/php.d
Now we must configure XCache. The configuration options are explained here: http://xcache.lighttpd.net/wiki/XcacheIni
The least you should do is enable extension = xcache.so and disable all zend_extension lines; furthermore, set xcache.size to a size (in MB) > 0 to enable XCache:
vi /etc/php.d/xcache.ini
[xcache-common]
;; install as zend extension (recommended), normally “$extension_dir/xcache.so”
;zend_extension = /usr/local/lib/php/extensions/non-debug-non-zts-xxx/xcache.so
; zend_extension_ts = /usr/local/lib/php/extensions/non-debug-zts-xxx/xcache.so
;; For windows users, replace xcache.so with php_xcache.dll
;zend_extension_ts = c:/php/extensions/php_xcache.dll
;; or install as extension, make sure your extension_dir setting is correct
extension = xcache.so
;; or win32:
; extension = php_xcache.dll
[…]
xcache.size = 32M
[…]
That’s it. Restart Apache, and you’re done:
/etc/init.d/httpd restart
Afterwards, open phpinfo.php again in a browser: http://192.1681.1.12/phpinfo.php, You should now see XCache mentioned on the page
