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Requirements and Setup

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This page lists the minimum requirements for installing Tikiwiki.

Requirements and Setup

Requirements

Webserver

Tiki is developed and widely tested with Linux and Apache. However, Tiki should run on any webserver that supports PHP, like Windows/IIS, lighttpd etc. but you should expect to need to tweak things. Please see the Windows_compatibility_project.

Your webserver should be configured with the following minimal requirements:

512 MB RAM
100 MB free storage

Database

Tikiwiki requires an active relational database connection. The database can be installed in the same physical location of the webserver (localhost). It can also be a remote database. Tikiwiki is developed and tested mainly on MySQL databases:

MySQL 5 or higher
MySQL 4.1 or higher (Issues reported with Tiki 2.x and MySQL 4.0)

Possible but not recommended databases

PostgreSQL (partial support)
SQLite (partial support)
Oracle (partial support)
Sybase (partial support)
MSSQL (partial support)

For an idea of the issues: http://dev.tikiwiki.org/Database+independence

PHP

Tiki version 3 (or later) requires PHP 5 with the MySQLi extension.

Note on PHP Memory Limits: some ISP's install PHP with a memory_limit = 8m. While Tikiwiki may install, and initially appear to work fine, when faced with even a slight load, this limit will be easily passed and the system will constantly fail: pages will not load properly, odd errors will occur etc. To check this limit, try yourdomain.com/tiki-phpinfo.php . Run that and search for three values on your ISP’s server:

max_execution_time = 300 ; Maximum execution time of each script, in seconds
max_input_time = 60 ; Maximum amount of time each script may spend parsing request data
memory_limit = 32M ; Maximum amount of memory a script may consume

This limit is not generally user manageable so you must rely on the kindness of your ISP to grant you more resources. On a busy shared server that will also mean that all other PHP users on that shared server will also be granted those resources.

More information

[+]

Libraries
libxml must be enabled	http://us2.php.net/manual/en/ref.xml.php
mbstring is a plus if you work with a language that needs it	http://us2.php.net/manual/en/ref.mbstring.php
ctype must be enabled for tw >=1.10
native PHP DOM XML OR Active-Link DOM XML extension installed	for pdf generation tw>=1.10
GD PHP Image Extension, version 2.0.28 or newer	for pdf generation tw >=1.10
Zlib, Ghostscript, pdflib	highly recommanded for pdf generation tw>=1.10
iconv, ImageMagick	recommended for pdf generation tw>=1.10
ctype	must be enabled for tw>=3.0
php5	is recommended when using tracker for tw>=2.0

We recommend using the following configuration in your php.ini file:

PHP.INI setting	Description
memory_limit = 32M	Specify the maximum memory for PHP scripts.
file_uploads = On	Required to allow uploads (files, images, etc.) to your Tiki
upload_max_filesize = XXM	Specify the maxium upload filesize (in MB).
allow_url_fopen = On	Allow trackback pings in your Tiki blogs.
session.save_handler = files session.save_path = /tmp	The path that PHP stores session information. Ensure that the location exists and is writable. In Shared Hosting environments, if you do not have access to /tmp, use temp (no slash) instead.
max_execution_time = 60 max_input_time = 60	Specify the idle timeout (in seconds). If you experience timeouts (such as when performing Admin functions) you may need to increase these settings.
magic_quotes_gpc = Off	Turn off PHP's Magic Quotes function.
default_charset = "utf-8"	Specify the default charcter encoding.

The location of the php.ini file may vary, depending on your operating sytem. Some common locations include:

/etc/php.ini
/etc/php/php.ini
/etc/php4/php.ini
/etc/php/apache1-php4/php.ini (Gentoo)
/etc/php/cli-php4/php.ini (Gentoo)
/etc/php4/apache2 (Debian)
\windows\system\php.ini (Windows)

Notes:

PHP 4.1.2 has a known session bug and should not be used.
you may also need the php-devel package being installed (and restarted apache) to get past the "blank screen issue" of tiki-install.php. (See forum article about that). Prior to it please check, that you have enabled the proper database in your php.ini.
If safemode is on you can need safe_mode_allowed_env_vars = TZ in php.ini
To run PHP5 on 1and1.com just put the following line in your _htaccess file (Tiki 3.X):
AddType x-mapp-php5 .php
AddHandler x-mapp-php5 .php
uncomment ligne 29 and 30 then rename in .htaccess

Optional Software or Libraries

Some TikiWiki feautures require the following additional software or libraries:

Feature	Additional Requirements
Image processing, used for thumbnail generation, dynamic chart generation, and to prevent bot/automatic registration.	Use either GD Library 1.5 (or higher) or ImageMagick. ImageMagick is included, by default with PHP 4.3+
WikiGraph for creating and manipulating graphs.	GraphViz
Webmail	PHP 4.2+
PDF Generation	php-xml
Manage and display maps as a GeoCMS (Geospastial Content Management System).	Mapserver 4.6+
Rewrite Tiki's default URLs	Use the Apache Rewrite Rules to create shorter, or custom, URLs.

Fantastico (and other ISP panels)

If your web host uses Fantastico or another web hosting control panel, you'll need to verify that their script will install the current version of Tikiwiki, with all the proper security updates.
Using Fantastico for upgrades is not recommended as it will not preserve any theme changes, image galleries, etc. that have been made.

History

Information	Version
Sat 28 Nov, 2009 15:07 UTC Marc Laporte	88	View
Mon 23 Nov, 2009 03:23 UTC Marc Laporte	87	View
Mon 23 Nov, 2009 03:19 UTC Marc Laporte things always need review	86	View
Sat 21 Nov, 2009 03:26 UTC Marc Laporte PDF generation has been remove a while back	85	View
Sat 21 Nov, 2009 03:24 UTC Marc Laporte	84	View
Wed 04 Nov, 2009 22:21 UTC Marc Laporte	83	View
Mon 28 Sep, 2009 12:32 UTC sylvie	82	View
Sun 20 Sep, 2009 02:25 UTC Marc Laporte	81	View
Sat 19 Sep, 2009 00:51 UTC Marc Laporte always PHP5	80	View
Sat 19 Sep, 2009 00:47 UTC Marc Laporte	79	View
Sat 19 Sep, 2009 00:46 UTC Marc Laporte	78	View
Tue 08 Sep, 2009 18:31 UTC Marc Laporte will put on its page (why scare people with requirement they don't need?)	77	View
Tue 08 Sep, 2009 18:30 UTC Marc Laporte irrelevant nowadays	76	View
Tue 08 Sep, 2009 18:24 UTC Marc Laporte	75	View
Mon 17 Aug, 2009 01:12 UTC Marc Laporte	74	View
Thu 16 Jul, 2009 19:36 UTC Chealer	73	View
Thu 16 Jul, 2009 19:08 UTC Chealer	72	View
Thu 16 Jul, 2009 19:00 UTC Chealer	71	View
Wed 08 Jul, 2009 11:45 UTC Rodrigo Sampaio Primo clean up	70	View
Sun 05 Jul, 2009 16:17 UTC amette	69	View
Sat 16 May, 2009 11:52 UTC trois14	68	View
Mon 04 May, 2009 11:09 UTC Xavier de Pedro	67	View
Thu 30 Apr, 2009 15:16 UTC Marc Laporte	66	View
Tue 28 Apr, 2009 12:05 UTC Marc Laporte	65	View
Tue 28 Apr, 2009 12:03 UTC Marc Laporte	64	View
Sun 05 Apr, 2009 00:57 UTC Marc Laporte	63	View
Sun 05 Apr, 2009 00:49 UTC Marc Laporte more warings about non Apache	62	View
Thu 26 Feb, 2009 16:29 UTC sylvie	61	View
Tue 13 Jan, 2009 18:26 UTC Marc Laporte update from info on mailing list today	60	View
Fri 12 Sep, 2008 13:47 UTC mlpvolt in reality Tiki is becoming a MySQL thing.	59	View
Fri 12 Sep, 2008 13:46 UTC mlpvolt	58	View
Fri 12 Sep, 2008 13:40 UTC mlpvolt	57	View
Tue 22 Jul, 2008 02:11 UTC Marc Laporte It's pretty rare that shared hosting is at 8 Megs	56	View
Wed 12 Mar, 2008 14:59 UTC sitko	55	View
Sat 01 Mar, 2008 21:03 UTC patric.wust	54	View
Wed 07 Nov, 2007 14:50 UTC sylvie	53	View
Tue 04 Sep, 2007 22:30 UTC Mike Typo fixed.	52	View
Wed 08 Aug, 2007 13:41 UTC sylvie	51	View
Wed 08 Aug, 2007 13:39 UTC sylvie	50	View
Mon 02 Jul, 2007 00:09 UTC WisTex	49	View
Mon 02 Jul, 2007 00:08 UTC WisTex	48	View
Tue 22 May, 2007 03:07 UTC dthacker Clarify discussion of Fantastico, moved menu around, cleanup	47	View
Fri 18 May, 2007 14:47 UTC sylvie	46	View
Fri 16 Mar, 2007 02:18 UTC mlpvolt	45	View
Tue 06 Feb, 2007 09:02 UTC luciash d' being 🧙 some little corrections	44	View
Fri 26 Jan, 2007 13:23 UTC Carsten Schmitz	43	View
Fri 29 Dec, 2006 13:55 UTC dthacker	42	View
Fri 29 Dec, 2006 13:53 UTC dthacker	41	View
Tue 08 Aug, 2006 11:38 UTC Rick Sapir / Tiki for Smarties added note re: mysql5	40	View
Sat 05 Aug, 2006 05:11 UTC Marc Laporte typo	39	View

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Tiki Roundtable Meeting - September 2025

History: Requirements

Preview of version: 73

Requirements and Setup

Table of contents

Requirements

Webserver

Database

Possible but not recommended databases

PHP

More information

Optional Software or Libraries

Fantastico (and other ISP panels)

History

About Tiki

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Tiki Roundtable Meeting - September 2025

History: Requirements

Preview of version: 73

Requirements and Setup

Table of contents

Requirements

Webserver

Database

Possible but not recommended databases

PHP

More information

Optional Software or Libraries

Fantastico (and other ISP panels)

History

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