Mysqli result mode

[sclubricants]

Each pull request should address a single issue and have a meaningful title.

Description
Explain what you have changed, and why.

Checklist:

• Securely signed commits
• Component(s) with PHPdocs
• Unit testing, with >80% coverage
• User guide updated
• Conforms to style guide

---------Remove from here down in your description----------

Notes

• Pull requests must be in English
• If the PR solves an issue, reference it with a suitable verb and the issue number
  (e.g. fixes 12345)
• Unsolicited pull requests will be considered, but there is no guarantee of acceptance
• Pull requests should be from a feature branch in the contributor's fork of the repository
  to the develop branch of the project repository