PHP 8.3: What's New and Changed
New Features in PHP 8.3
- Typed Class Constants
- Added
json_validatefunction - Dynamic class constant and Enum member fetch support
gc_status()returns additional GC informationRandomextension: New\Random\Randomizer::getBytesFromStringmethodRandomextension: New\Random\Randomizer::getFloat()andnextFloat()methods- Fallback value support for PHP INI Environment Variable syntax
- PHP CLI Lint (
php -l) supports linting multiple files at once class_alias()supports aliasing built-in PHP classes- New
stream_context_set_optionsfunction
Syntax/Functionality Changes in PHP 8.3
unserialize(): UpgradeE_NOTICEerrors toE_WARNINGhighlight_fileandhighlight_stringoutput HTML changes- Granular
DateTimeExceptions - Class constant type declarations in some PHP extension classes
- Built-in CLI Server
$_SERVER['SERVER_SOFTWARE']value changed for RFC3875 compliance