Setup your IDE

In the Appendix, you can find some hints that might be useful for PhpStorm: Setup.

Coding Guidelines

There is an .editorconfig file in the TYPO3 core repository. See https://editorconfig.org/ for more information.

Please note that the rules in .editorconfig are very minimal. So, additionally, setup your editor / IDE to use the recommendation as described in the Coding Guidelines of TYPO3.

See PhpStorm setup CGL for information about setting up PhpStorm to comply with the Coding Guidelines.