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<?php readonly class Foobar { public function __construct(public string $foo) {} } try { $reflection = new ReflectionClass(Foobar::class); $obj = $reflection->newInstanceWithoutConstructor(); echo $obj->foo, PHP_EOL; } catch (Throwable $exception) { echo $exception->getMessage(), PHP_EOL, $exception::class, PHP_EOL, implode(PHP_EOL, class_parents($exception)); }
Output for 8.2.0 - 8.2.31, 8.3.0 - 8.3.31, 8.4.1 - 8.4.22, 8.5.0 - 8.5.7
Typed property Foobar::$foo must not be accessed before initialization Error
Output for 8.1.32 - 8.1.34
Parse error: syntax error, unexpected token "readonly", expecting end of file in /in/Wn7En on line 3
Process exited with code 255.
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