3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A { const x = '3.1415'; } class B extends A { public function getX() { return $this->x; } } $b = new B; echo $b->getX();
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
Warning: Undefined property: B::$x in /in/rjXeY on line 8
Output for 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.5 - 7.2.33, 7.3.16 - 7.3.31, 7.4.0 - 7.4.33
Notice: Undefined property: B::$x in /in/rjXeY on line 8
Output for 7.3.32 - 7.3.33

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