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<?php declare(strict_types=1); class Foo { public function __set(string $name, int $value): void { $this->{$name} = $value; } public function __get(string $name): int { return $this->{$name}; } } $o = new Foo; $o->x = '3'; var_dump($o->x);
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught TypeError: Foo::__set(): Argument #2 ($value) must be of type int, string given, called in /in/lWGYU on line 15 and defined in /in/lWGYU:5 Stack trace: #0 /in/lWGYU(15): Foo->__set('x', '3') #1 {main} thrown in /in/lWGYU on line 5
Process exited with code 255.

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