tools-only Extension Conformance with PHP 8.4
Compatibility: PHP 8.4+, TYPO3 v13.x and v14.x
Related Skills:
- typo3-conformance - Main conformance guide
- php-modernization/SKILL-PHP84 - PHP 8.4 features
1. PHP 8.4 Coding Standards
Recommended Patterns
| Pattern | Standard |
|---|---|
| Property hooks | Use for validation/transformation |
| Asymmetric visibility | Prefer over private + getter |
| New array functions | Use over manual loops |
#[\Deprecated] |
Mark legacy code properly |
2. PHP-CS-Fixer Configuration
<?php
// .php-cs-fixer.dist.php
$config = new PhpCsFixer\Config();
return $config
->setRules([
'@PER-CS' => true,
'@PER-CS:risky' => true,
'declare_strict_types' => true,
'trailing_comma_in_multiline' => [
'elements' => ['arguments', 'arrays', 'match', 'parameters'],
],
'nullable_type_declaration_for_default_null_value' => true,
])
->setRiskyAllowed(true)
->setFinder(
PhpCsFixer\Finder::create()
->in(__DIR__ . '/Classes')
->in(__DIR__ . '/Tests')
);
3. PHPStan Level 10
# phpstan.neon
parameters:
phpVersion: 80400
level: 10
paths:
- Classes
treatPhpDocTypesAsCertain: false
4. Conformance Checklist for PHP 8.4
- All nullable parameters explicitly typed (
?Type) -
declare(strict_types=1)in all files - No single underscore class names
-
#[\Deprecated]on legacy methods - PHPStan level 9+ passing
- PHP-CS-Fixer with PER-CS
References
Credits & Attribution
This skill is part of the webconsulting.at TYPO3 skills collection.