tools-only TYPO3 Core Contributions with PHP 8.4
Compatibility: PHP 8.4+, TYPO3 v13.x and v14.x
Related Skills:
- typo3-core-contributions - Main contributions guide
- php-modernization/SKILL-PHP84 - PHP 8.4 features
1. Core PHP 8.4 Adoption
TYPO3 v14 PHP Requirements
TYPO3 v14 requires PHP 8.3+ and fully supports PHP 8.4 features.
When to Use PHP 8.4 Features in Core
| Feature | Core Usage |
|---|---|
| Property hooks | For value objects and DTOs |
| Asymmetric visibility | For immutable services |
| New array functions | For collection operations |
#[\Deprecated] |
For deprecating Core methods |
2. Example Core Patch Patterns
Using Property Hooks
<?php
declare(strict_types=1);
namespace TYPO3\CMS\Core\Configuration;
final class SiteConfiguration
{
public string $identifier {
set (string $value) {
if (!preg_match('/^[a-z][a-z0-9_-]*$/', $value)) {
throw new \InvalidArgumentException(
'Site identifier must be lowercase alphanumeric',
1234567890
);
}
$this->identifier = $value;
}
}
}
Using #[\Deprecated]
<?php
declare(strict_types=1);
namespace TYPO3\CMS\Core\Utility;
final class GeneralUtility
{
#[\Deprecated(
message: 'Use native array_find() instead',
since: 'TYPO3 14.0'
)]
public static function arrayFind(array $array, callable $callback): mixed
{
trigger_error(
'GeneralUtility::arrayFind() is deprecated. Use array_find().',
E_USER_DEPRECATED
);
return array_find($array, $callback);
}
}
3. Commit Message for PHP 8.4 Changes
[TASK] Use PHP 8.4 array_find() in ContentRepository
Replace manual loop with native array_find() function
introduced in PHP 8.4.
Resolves: #12345
Releases: main
4. Testing PHP 8.4 Changes
# Run Core tests with PHP 8.4
Build/Scripts/runTests.sh -p 8.4 -s functional
# Check for deprecations
Build/Scripts/runTests.sh -s checkDeprecations
References
Credits & Attribution
This skill is part of the webconsulting.at TYPO3 skills collection.