History: Requirements

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Preview of version: 92

Requirements and Setup

This page lists the minimum requirements for installing Tiki.

If you are using standard shared hosting, you can assume that the requirements are met, as Tiki is designed to run on shared hosting, using the LAMP stack. The instructions below are useful for people that are configuring a server for Tiki.

Requirements and Setup
- Requirements
- Optional Software or Libraries
Alias

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

Tiki 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. Tiki is developed and tested mainly on MySQL databases:

MySQL 5 or higher (require for Tiki3 or higher)
MySQL 4.1 or higher

Possible but not recommended databases

PostgreSQL (doesn't work with Tiki3 or Tiki4, but work is ongoing to fix for Tiki5)
SQLite (doesn't work with Tiki3 or Tiki4, but work is ongoing to fix for Tiki5)
~~Oracle~~ (abandoned)
~~Sybase~~ (abandoned)
~~MSSQL~~ (abandoned)

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.
Tiki version 4 (or later) prefers PHP 5 with the PDO extension. You can revert back to ADOdb if PDO is not available. Please see: ReleaseNotes40

Note on PHP Memory Limits: some ISP's install PHP with a memory_limit = 8m. While Tiki 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 = 60 ; 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

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.
mbstring.func_overload = 0	Will not work properly with mbstring.func_overload = 7

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 Tiki 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+
Manage and display maps as a GeoCMS (Geospastial Content Management System).	Mapserver 4.6+
Rewrite Tiki's default URLs	Use the Apache Clean URLs to create shorter, or custom, URLs.

Alias

Requirements and Setup

History

Information	Version
Tue 03 Apr, 2012 23:34 GMT-0000 Marc Laporte	138	View
Tue 03 Apr, 2012 23:07 GMT-0000 Marc Laporte	137	View
Tue 03 Apr, 2012 23:00 GMT-0000 Marc Laporte	136	View
Tue 24 Jan, 2012 14:53 GMT-0000 Marc Laporte	135	View
Thu 06 Oct, 2011 14:50 GMT-0000 Xavier de Pedro	134	View
Thu 06 Oct, 2011 14:50 GMT-0000 Xavier de Pedro	133	View
Wed 10 Aug, 2011 19:00 GMT-0000 Marc Laporte	132	View
Mon 04 Jul, 2011 17:37 GMT-0000 Philippe Cloutier update php.ini locations list	131	View
Fri 24 Jun, 2011 16:36 GMT-0000 Nelson Ko	130	View
Fri 24 Jun, 2011 16:35 GMT-0000 Nelson Ko	129	View
Sun 05 Jun, 2011 06:22 GMT-0000 Gregor (gta74) typo	128	View
Sat 14 May, 2011 16:17 GMT-0000 Philippe Cloutier	127	View
Sat 14 May, 2011 16:16 GMT-0000 Philippe Cloutier test alias issue	126	View
Sat 14 May, 2011 16:16 GMT-0000 Philippe Cloutier test encoding issue	125	View
Sat 14 May, 2011 14:58 GMT-0000 luciash d' being 🧙	124	View
Thu 05 May, 2011 20:42 GMT-0000 sylvie	123	View
Fri 25 Mar, 2011 21:42 GMT-0000 Marc Laporte Fancy Table Plugin modified by editor.	122	View
Fri 25 Mar, 2011 21:41 GMT-0000 Marc Laporte	121	View
Fri 25 Mar, 2011 21:40 GMT-0000 Marc Laporte	120	View
Fri 25 Mar, 2011 21:38 GMT-0000 Marc Laporte	119	View
Fri 25 Mar, 2011 21:37 GMT-0000 Marc Laporte	118	View
Fri 25 Mar, 2011 21:36 GMT-0000 Marc Laporte	117	View
Fri 25 Mar, 2011 20:05 GMT-0000 Marc Laporte Since MySQL vs MYSQLi is available in all versions of the installer, move this note to be more general and not specific to Tiki3	116	View
Fri 25 Mar, 2011 19:33 GMT-0000 Marc Laporte cleanup, as per discussion on the devlist	115	View
Fri 25 Mar, 2011 19:15 GMT-0000 Marc Laporte 5.1 for Tiki6LTS	114	View
Wed 09 Feb, 2011 15:43 GMT-0000 Rick Sapir / Tiki for Smarties	113	View
Wed 09 Feb, 2011 15:42 GMT-0000 Rick Sapir / Tiki for Smarties Fancy Table Plugin modified by editor.	112	View
Wed 09 Feb, 2011 15:41 GMT-0000 Rick Sapir / Tiki for Smarties	111	View
Wed 09 Feb, 2011 15:37 GMT-0000 Rick Sapir / Tiki for Smarties	110	View
Tue 30 Nov, 2010 20:48 GMT-0000 Rick Sapir / Tiki for Smarties	109	View
Tue 30 Nov, 2010 20:41 GMT-0000 Rick Sapir / Tiki for Smarties	108	View
Tue 30 Nov, 2010 20:31 GMT-0000 Rick Sapir / Tiki for Smarties	107	View
Mon 25 Oct, 2010 02:59 GMT-0000 Marc Laporte archaic comment	106	View
Mon 25 Oct, 2010 02:39 GMT-0000 Marc Laporte cleaning up	105	View
Mon 25 Oct, 2010 02:24 GMT-0000 Marc Laporte	104	View
Mon 25 Oct, 2010 02:19 GMT-0000 Marc Laporte	103	View
Mon 04 Oct, 2010 19:05 GMT-0000 Philippe Cloutier bump PHP requirement to 5.2 for Tiki 7 per decision in TikiFestNewYork6	102	View
Thu 23 Sep, 2010 18:23 GMT-0000 Marc Laporte	101	View
Mon 16 Aug, 2010 14:53 GMT-0000 Philippe Cloutier	100	View
Fri 16 Jul, 2010 14:43 GMT-0000 Marc Laporte	99	View
Mon 28 Jun, 2010 18:00 GMT-0000 Marc Laporte	98	View
Fri 25 Jun, 2010 16:26 GMT-0000 Rick Sapir / Tiki for Smarties	97	View
Sat 29 May, 2010 18:19 GMT-0000 Xavier de Pedro	96	View
Wed 19 May, 2010 14:56 GMT-0000 Christophe	95	View
Wed 19 May, 2010 14:41 GMT-0000 Christophe	94	View
Mon 18 Jan, 2010 21:56 GMT-0000 Philippe Cloutier Tiki now requires MySQL	93	View
Mon 21 Dec, 2009 17:24 GMT-0000 Marc Laporte	92	View
Sat 19 Dec, 2009 18:08 GMT-0000 Marc Laporte 5 minutes to run a script? that is too much	91	View
Sat 28 Nov, 2009 15:11 GMT-0000 Marc Laporte 1-Partially false. 2- Misleading and scaring people for nothing. 3-Fantastico handles upgrades 4-This is not the right place to put this type of info.	90	View
Sat 28 Nov, 2009 15:11 GMT-0000 Marc Laporte 1-Partially false. 2- Misleading and scaring people for nothing. 3-Fantastico handles upgrades 4-This is not the right place to put this type of info.	89	View

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History: Requirements

Preview of version: 92

Requirements and Setup

Table of contents

Requirements

Webserver

Database

Possible but not recommended databases

PHP

More information

Optional Software or Libraries

Alias

History

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Upcoming event : Tiki Roundtable Meeting - September 2025

History: Requirements

Preview of version: 92

Requirements and Setup

Table of contents

Requirements

Webserver

Database

Possible but not recommended databases

PHP

More information

Optional Software or Libraries

Alias

History

Related content