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<?php class Foo { public readonly int $bar; public function __set($name, $value) { echo "__set($name, $value)\n"; } public function unsetBar() { unset($this->bar); } } $foo = new Foo(); try { $foo->bar = 42; } catch (Throwable $e) { echo $e->getMessage(), "\n"; } $foo->unsetBar(); $foo->bar = 42;
Output for git.master, git.master_jit
Cannot initialize readonly property Foo::$bar from global scope __set(bar, 42)

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