3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Foo { protected $protected1 = 'protected1'; public function test1() { var_dump($this->protected1); var_dump($this->protected2); } } class Bar extends Foo { protected $protected2 = 'protected2'; public function test2() { var_dump($this->protected1); var_dump($this->protected2); } } (new Bar)->test1(); (new Bar)->test2();
Output for 5.6.0 - 5.6.40, 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 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.26, 8.4.1 - 8.4.13
string(10) "protected1" string(10) "protected2" string(10) "protected1" string(10) "protected2"

preferences:
151.19 ms | 408 KiB | 5 Q