Installing As PHP Extension

Install into php.ini

check ​phpinfo() for php.ini location, supposing it's /etc/php.ini

# cat xcache.ini >> /etc/php.ini

(modify php.ini for your usage
# $EDITOR /etc/php.ini

WARNING: it's >> not >

See also: [SeparatingPhpIni?]

Restart php

You know how to restart php than i do. It depends on what your php-sapi is, and how you run your php.

• ​lighttpd or any webserver + mod_fastcgi --> php-fastcgi: just restart php itself, not the webserver

  (in case you run php with daemontools, do)
  # svc -d php && svc -u php; echo $?
  
  (or in case you're using gentoo daemontools, do)
  # svcinit php restart
  
  (in any other case, you should know better than i do.)
  

• any webserver + mod_php: restart the webserver. something like:

  (in case you're using apache, do)
  # /etc/init.d/apache* restart
  
  (or do)
  # /etc/init.d/httpd* restart
  
  (in any other case, you should know better than i do.)
  

Make sure XCache is working

• if you're working with php-fcgi, simply run

  $ php-fcgi -v
  PHP 4.4.3-dev (cgi-fcgi) (built: Mar 10 2006 18:46:02)
  Copyright (c) 1997-2006 The PHP Group
  Zend Engine v1.3.0, Copyright (c) 1998-2004 Zend Technologies
      with XCache v1.0, Copyright (c) 2005-2006, by mOo
  

• otherwise, check ​phpinfo():
  ......
  This program makes use of the Zend Scripting Language Engine:
  Zend Engine v1.3.0, Copyright (c) 1998-2004 Zend Technologies with XCache v1.0, Copyright (c) 2005-2006, by mOo
  .....

  xcache

  XCache Support	enabled
  Version	1.0
  Readonly Protection	N/A
  Opcode Cache	enabled
  Variable Cache	enabled

  
  

See also: BuildingFromSource (prev), PHP FastCGI on Lighttpd