Errors and deprecations findings

[rikardow]

Hi, thanks for the great work on this plugin

We found some errors and deprecations in the codebase, here's the list

1. File: question/type/wq/db/upgrade.php
   Line: 110
   Message: Function utf8_encode() is deprecated since PHP 8.2; Use mb_convert_encoding(), UConverter::transcode() or iconv instead
   Type: warning

2. File: question/type/wq/quizzes/lib/haxe/Utf8.class.php
   Line: 26
   Message: Function utf8_encode() is deprecated since PHP 8.2; Use mb_convert_encoding(), UConverter::transcode() or iconv instead
   Type: warning

3. File: question/type/wq/quizzes/lib/haxe/Utf8.class.php
   Line: 29
   Message: Function utf8_decode() is deprecated since PHP 8.2; Use mb_convert_encoding(), UConverter::transcode() or iconv instead
   Type: warning

4. File: question/type/wq/quizzes/lib/php/Boot.class.php
   Line: 808
   Message: 'enum' is a soft reserved keyword as of PHP version 8.1 and should not be used to name a class, interface or trait or as part of a namespace (class declaration)
   Type: warning

5. File: question/type/wq/quizzes/lib/Xml.class.php
   Line: 219
   Message: Method name \Xml::__saveText" is discouraged; PHP has reserved all method names with a double underscore prefix for future use."
   Type: warning

6. File: question/type/wq/quizzes/lib/Xml.class.php
   Line: 225
   Message: Method name \Xml::__start_element_handler" is discouraged; PHP has reserved all method names with a double underscore prefix for future use."
   Type: warning

7. File: question/type/wq/quizzes/lib/Xml.class.php
   Line: 235
   Message: Method name \Xml::__end_element_handler" is discouraged; PHP has reserved all method names with a double underscore prefix for future use."
   Type: warning

8. File: question/type/wq/quizzes/lib/Xml.class.php
   Line: 242
   Message: Method name \Xml::__character_data_handler" is discouraged; PHP has reserved all method names with a double underscore prefix for future use."
   Type: warning

9. File: question/type/wq/quizzes/lib/Xml.class.php
   Line: 245
   Message: Method name \Xml::__default_handler" is discouraged; PHP has reserved all method names with a double underscore prefix for future use."
   Type: warning

10. File: question/type/wq/quizzes/lib/php/Boot.class.php
    Line: 732
    Message: Method name _hx_type::rfl" is discouraged; PHP has reserved all method names with a double underscore prefix for future use."
    Type: warning

11. File: question/type/wq/quizzes/lib/com/wiris/util/geometry/GeometryElementStyle.class.php
    Line: 25
    Message: Method name \com_wiris_util_geometry_GeometryElementStyle::meta" is discouraged; PHP has reserved all method names with a double underscore prefix for future use."
    Type: warning

12. File: question/type/wq/quizzes/lib/com/wiris/system/CallWrapper.class.php
    Line: 9
    Message: Function __autoload() is deprecated since PHP 7.2 and removed since PHP 8.0; Use spl_autoload_register() instead
    Type: error

13. File: question/type/wq/quizzes/lib/com/wiris/quizzes/impl/QuestionInstanceImpl.class.php
    Line: 1525
    Message: Method name \com_wiris_quizzes_impl_QuestionInstanceImpl::meta" is discouraged; PHP has reserved all method names with a double underscore prefix for future use."
    Type: warning

14. File: question/type/wq/quizzes/lib/com/wiris/quizzes/impl/QuizzesUIBuilderImpl.class.php
    Line: 104
    Message: Method name \com_wiris_quizzes_impl_QuizzesUIBuilderImpl::meta" is discouraged; PHP has reserved all method names with a double underscore prefix for future use."
    Type: warning

15. File: question/type/wq/quizzes/lib/com/wiris/quizzes/impl/Assertion.class.php
    Line: 352
    Message: Method name \com_wiris_quizzes_impl_Assertion::meta" is discouraged; PHP has reserved all method names with a double underscore prefix for future use."
    Type: warning

16. File: question/type/wq/quizzes/lib/com/wiris/quizzes/impl/QuizzesBuilderImpl.class.php
    Line: 85
    Message: Method name \com_wiris_quizzes_impl_QuizzesBuilderImpl::meta" is discouraged; PHP has reserved all method names with a double underscore prefix for future use."
    Type: warning

17. File: question/type/wq/quizzes/lib/com/wiris/quizzes/api/QuizzesConstants.class.php
    Line: 6
    Message: Method name \com_wiris_quizzes_api_QuizzesConstants::meta" is discouraged; PHP has reserved all method names with a double underscore prefix for future use."
    Type: warning

Thank you very much for your efforts