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<?php class A { public static function getSelfInstance() : self { return new self(); } /** @return static */ public static function getStaticInstance() { return new static(); } } class B extends A {} var_dump(get_class(B::getSelfInstance())); var_dump(get_class(B::getStaticInstance()));
Output for rfc.property-hooks, git.master, git.master_jit
string(1) "A" string(1) "B"

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