Requirements and setup

Required Softwares

• PHP 4.1+, Tiki won't work with older versions of PHP.
• A database, most tiki-compliant is Mysql but you can use postgres, oracle, sybase or mssql.
• A webserver that can run PHP. Apache is strongly recommended but other webservers may work as well.

Optionnal Softwares or libs

Some features can require external additionnal softwares.

• Image processing library for thumbnail generation, dynamic chart generation and Prevent automatic/robot registration. This can be either :
  • GD library > 1.5 and PHP compiled
  • ImageMagick but only for thumbnail generation see ImageMagick Install
    (You don't need to get those 2 libraries if you use PHP 4.3+ since they are bundled.)
• WikiGraph plugin needs GraphViz installed : see GraphViz Install
• Search : For full-text search MySQL3.23.23+, for boolean full-text search MySQL4.0.1+.
• Webmail : Will need at least PHP4.2+

PHP setup

• You don t need any specific PHP extension to install Tiki but GD is recommended and will be used if you have it. (GD is bundled by default with PHP 4.3+)
• If you want to use uploads (files, images) make sure uploads are enabled in php.ini.
  • file_uploads = On
• Tiki uses sessions (a common mechanism in PHP4) make sure that the path where PHP stores sessions (php.ini) exists and that PHP can write to that path. (special case in Shared Hosting environment wher you may have no access to /tmp, in which case replace it with temp, with no shlash).
  • session.save_handler = files
  • session.save_path = /tmp
• It is highly recommended to increase the maximum memory size for PHP scripts from 8Mb to 16Mb in your php.ini configuration file. (Note from 1.6 Tiki MAY run in 8Mb environments)
  • memory_limit = 16M
• Another settings recommended to change which may cause timeouts if your wiki is large and prevent you from doing a Backup through the Admin menu.
  • max_execution_time = 60
• With PHP4.1, be sure pcre is enabled (enabled by default with PHP4.2+)