3v4l.org

run code in 300+ PHP versions simultaneously
<?php abstract class A { protected $_a; } class B extends A { use T; } trait T { protected $_a; } new B;
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Output for 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
Strict Standards: A and T define the same property ($_a) in the composition of B. This might be incompatible, to improve maintainability consider using accessor methods in traits instead. Class was composed in /in/BvEnn on line 11
preferences:
215.95 ms | 402 KiB | 272 Q