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

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.
  • 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+)