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<?php class Foo { public $bar; public $baz = null; } $foo = new Foo(); var_dump(isset($foo->bar), $foo->bar); var_dump(isset($foo->bar), $foo->baz); var_dump(isset($foo->bar), $foo->biz);
Output for git.master, git.master_jit, rfc.property-hooks
bool(false) NULL bool(false) NULL Warning: Undefined property: Foo::$biz in /in/VD5UQ on line 12 bool(false) NULL

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