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<?php class Foo { protected $bar; private $foo; } $foo = new Foo(); var_dump(array($foo)); var_dump( $foo->{"\0*\0bar"}, $foo->{"\0Foo\0foo"} ); $foo->{"\0*\0bar"} = 'baz'; $foo->{"\0Foo\0foo"} = 'bar'; var_dump(array($foo));

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