---
title: How to install eAccelerator
description: "Eaccelerator is a PHP accelerator/encoder/caching utility that is based off of the old mmcache (which is no longer being maintained).What Eaccelerator does is: it caches your PHP scripts so that the database is no longer being queried every time someone…"
url: "https://getsimple.net/knowledgebase/how-to-install-eaccelerator/"
updated: "2021-07-13"
category: Cloud Server Management / No Control Panel server management
---

# How to install eAccelerator

Eaccelerator is a PHP accelerator/encoder/caching utility that is based
 off of the old mmcache (which is no longer being maintained).What Eaccelerator does is: it caches your PHP scripts so that the database is no longer being queried every time someone needs a script. This is
 particularly useful for large forums, but pretty much anyone can benefit
 from it. Since these scripts are cached, youll notice a decrease in
 memory use and server load.
 Now, onto installing this!
 ============================
 Installing Eaccelerator
 ============================
 1. First, youll want to SSH into your server as the root user. you should
 be in the default directory now. If youre not, type in cd ~
 Now well make the eaccelerator directory:
 mkdir /ea/
 cd /ea/
 2. Now well grab the files, and untar them:
 Notice that its a tar.bz2 file, so we need to decompress it twice.

wget http://oratoronline.com/how2/Eaccelerator/eaccelerator-0.9.5.2.tar.bz2

bzip2 -d eaccelerator-0.9.4-rc1.tar.bz2

tar -xvf eaccelerator-0.9.4-rc1.tar

3. Now that we have done that, lets install Eaccelerator:

Note: in the following export command, you need to point that to where
 PHP is installed. For most, its usually either /usr/ or /usr/local, but
 it may be something else.

cd eaccelerator-0.9.4-rc1/

export PHP_PREFIX=/usr

$PHP_PREFIX/bin/phpize

./configure –enable-eaccelerator=shared –with-php-config=$PHP_PREFIX/bin/php-config
 make
 make install

4. Its basically installed, now we need to edit the php.ini files to
 include Eaccelerator. This is usually found in the /etc/ folder, but if
 you cant find it, run a “locate php.ini (without quotes) to find it.
 You can use pico or vi, its your choice:
 cd ~
 nano /etc/php.ini
 =======================================
 For a PHP extension install (most will probably want this)
 =======================================
 extension=eaccelerator.so
 eaccelerator.shm_size=16
 eaccelerator.cache_dir=/tmp/eaccelerator
 eaccelerator.enable=1
 eaccelerator.optimizer=1
 eaccelerator.check_mtime=1
 eaccelerator.debug=0
 eaccelerator.filter=
 eaccelerator.shm_max=0
 eaccelerator.shm_ttl=0
 eaccelerator.shm_prune_period=0
 eaccelerator.shm_only=0
 eaccelerator.compress=1
 eaccelerator.compress_level=9
 ==========================================================================
 For a Zend Extension install (only if you have Zend Optimizer installed, or
 if youre going to install it
 ===========================================================================
 zend_extension=/usr/lib/php4/eaccelerator.so
 eaccelerator.shm_size=16
 eaccelerator.cache_dir=/tmp/eaccelerator
 eaccelerator.enable=1
 eaccelerator.optimizer=1
 eaccelerator.check_mtime=1
 eaccelerator.debug=0
 eaccelerator.filter=
 eaccelerator.shm_max=0
 eaccelerator.shm_ttl=0
 eaccelerator.shm_prune_period=0
 eaccelerator.shm_only=0
 eaccelerator.compress=1
 eaccelerator.compress_level=9
 cd ~
 mkdir /tmp/eaccelerator/
 chmod 0777 /tmp/eaccelerator/
 5.After installed restart apache to check eaccelerator is installed.
 service httpd restart

Verify:
 =========
 Run following command, and it should show Eaccelerator in the output as.

php -v
 PHP 4.4.4 (cgi) (built: Feb 7 2007 08:27:53)
 Copyright (c) 1997-2006 The PHP Group
 Zend Engine v1.3.0, Copyright (c) 1998-2004 Zend Technologies
 with eAccelerator v0.9.4-rc1, Copyright (c) 2004-2004 eAccelerator, by eAccelerator
 with Zend Extension Manager v1.2.0, Copyright (c) 2003-2006, by Zend Technologies
 with Zend Optimizer v3.2.2, Copyright (c) 1998-2006, by Zend Technologies