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<?php abstract class A { protected $a = 'AAA'; private $b = 'BBB'; public function printB() { echo $this->b.PHP_EOL; } } class B extends A { public function printB2() { echo $this->b.PHP_EOL; } public function printA() { echo $this->a.PHP_EOL; } } $obj = new B; $obj->printA(); $obj->printB(); $obj->printB2();
Output for git.master, git.master_jit, rfc.property-hooks
AAA BBB Warning: Undefined property: B::$b in /in/gA92u on line 11

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