How to install xCache on CentOS/RHEL 5/6/7

XCache is a quick, stable PHP opcode cacher. This generally new opcode caching software has been produced by mOo. XCache optimizes performance caching the compiled state of PHP scripts into the RAM and uses the compiled version straight from the RAM. This may increment php execution 1-5 times quicker than default installation.

Step 1: Install XCache for PHP

You can simply use yum command to install xcache for php.

# yum install php-xcache xcache-admin

Step 2: Configure XCache

XCache creates its default php configuration file xcache.ini. This file contains a long list of parameters

# vim /etc/php.d/xcache.ini

Step 3: Verify XCache

Create a php info file using below content and upload to your web server under document root. Open this file in browser and search for xcache.

# vim /var/www/html/info.php

<?php
phpinfo();
?>

Step 4: Configure XCache Admin Panel

XCache also gives admin panel by which we can view caching state, clear store or disabled. Utilizing default installation it’s not enabled. Below setup will enable XCache admin panel with password protected.

# cp -r /usr/share/xcache /usr/local/apache2/htdocs

# echo -n "secreatpassword" | md5sum

753f51a9cca136b41c5f7cced1f813dd  -

# vim /etc/php.d/xcache.ini

[xcache.admin]
xcache.admin.enable_auth = On
xcache.admin.user = "xadmin"
; set xcache.admin.pass = md5($your_password)
; login use $your_password
xcache.admin.pass = "753f51a9cca136b41c5f7cced1f813dd"

For CentOS/RHEL 5/6:
# /etc/init.d/httpd restart
For CentOS/RHEL 7:
# systemctl restart httpd

http://techoism.com/xadmin/
Login: xadmin / secreatpassword