System Requirements:Wikka Documentation

Basic system requirements for installing Wikka:

Access to a web server with at least 1Mb of free disk space (a fresh Wikka install takes around 700Kb of disk space)

until 1.3

PHP 4.1 or above (including 5.0 if the mysql (not mysqli) extensions are installed)

since 1.3

PHP 5.0 or above (note that various deprecated warnings may occur for versions of PHP greater than 5.1)

since 1.3.6

PHP 5.4.0 or above. For PHP versions >= 5.0 and < 5.4.0, breadcrumbs must be disabled in wikka.config.php: enable_breadcrumbs => '0'.

since 1.4.1

PHP 7.0 or above (tested with 7.2.1).

until 1.3

MySQL 3.23 or above (the size of the database depends on your needs)

since 1.3

MySQL 4.1 or above

since 1.4.1

MySQL 5.2 or above

Optional:

the lostpassword and the feedback actions depend on PHP being configured to send mails (standard on unix)

Wikka Documentation : SystemRequirements