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<?php class Foo { private static $bar; } var_dump(array_merge( [], ...array_map( function ($symbol) { return array_map( function (\ReflectionProperty $property) { return ($property->getDeclaringClass()->getName()) . '::$' . $property->getName(); }, array_filter( (\ReflectionClass($symbol))->getMethods(), function (\ReflectionProperty $property) { return $property->isStatic(); } ) ); }, array_merge(get_declared_classes(), get_declared_traits()) ) ));

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