<?php abstract class A { abstract public $x { get; } } class C extends A { private $_x; public $x { get => $this->_x; } } var_dump((new ReflectionProperty(C::class, 'x'))->isVirtual()); // should be: bool(true) $c = new C; $c->x = 3; // should throw an error: 'Property C::$x is read-only'
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