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<?php class A{ public string $x; } $A = new A; var_dump(property_exists($A,'x'));//true var_dump($A); //class A#1 (1) {} // - it counts the property, but hides it var_dump(new stdClass()); //class stdClass#1 (0) {} - empty object
Output for git.master, git.master_jit, rfc.property-hooks
bool(true) object(A)#1 (0) { ["x"]=> uninitialized(string) } object(stdClass)#2 (0) { }

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