1. Requirements

1.1. PHP

PHP 8.0 - 8.4 (PHP 8.3 recommended)

1.1.1. PHP Extensions

1. bcmath, or GMP
2. ctype
3. ext-dom
4. fileinfo
5. gd
6. iconv
7. intl
8. json
9. mbstring
10. mysqli
11. openssl
12. pcre
13. pdo
14. pdo_mysql
15. spl
16. zlib

1.1.2. Necessity to raise the PHP version

PHP version

• 7.4
  • Null Coalescing Assignment Operator - ??=
• 8.0
  • Match expression and str_*() functions

cause for raise

• PHP end of support
• library dependency
• core dependency

1.2. Web server

One of

• Apache >= 2.4
• Nginx
• other

WackoWiki is server-agnostic, however Apache rewrite rules in .htaccess must be converted accordingly.

1.3. Database

SQL database system, one of:

1.3.1. Necessity to raise the Database version

DB version

• MariaDB 10.2 & MySQL 5.7.7
  • support index key prefixes up to 3072 bytes by default (optional)
• MariaDB 10.4 & MySQL 8.0
  • End of support of earlier versions
  • MySQL: Changes in SQL mode settings (removes NO_AUTO_CREATE_USER)

cause for raise

• MariaDB end of support
• MySQL end of support
• core dependency

2. Used Libraries