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<?php class Test { protected $foo; public function __construct($foo) { $this->foo = $foo; } protected function bar() { echo 'Accessed the protectd method.'; } } class Test2 { public function baz(Test $other) { // We can change the protected property: $other->foo = 'hello'; var_dump($other->foo); // We can also call the protected method: $other->bar(); } } $test = new Test2('test'); $test->baz(new Test('other'));
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Uncaught Error: Cannot access protected property Test::$foo in /in/lnaYo:24 Stack trace: #0 /in/lnaYo(34): Test2->baz(Object(Test)) #1 {main} thrown in /in/lnaYo on line 24
Process exited with code 255.
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.38
Fatal error: Cannot access protected property Test::$foo in /in/lnaYo on line 24
Process exited with code 255.

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