Translations:Installation - LimeSurvey CE/9/en

The minimum set of requirements for LimeSurvey 6.x:

Minimum 250 MB disk space.
MySQL 5.5.3 or later OR Microsoft SQL Server 2005 or later OR Postgres 9 or later.
PHP version from 7.4.x to 8.1.x (PHP version from 7.2.5 to 8.0.x for LTS 5.X) (PHP version from 5.5.9 to 7.4.x for LTS 3.X)
php.ini `short_open_tag` setting should be set to `ON`
The following PHP modules/libraries should be enabled:
- mbstring (Multibyte String Functions) extension library.
- PDO database driver for MySQL (pdo_mysql or pdo_mysqli) or Postgres (pdo_pgsql) or MSSQL (pdo_sqlsrv for Windows and pdo_dblib for Linux).
- Also, we assume in general that all PHP default libraries are enabled
  - hash
  - session
  - openssl or mcrypt
  - fileinfo
  - SimpleXML
  - etc …