3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php abstract class A { protected $_a; } class B extends A { use T; } trait T { protected $_a; } new B;
based on iIWcP
Output for 7.0.0 - 7.2.0
Output for 5.4.0 - 5.6.28
Strict Standards: A and T define the same property ($_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
Output for 5.3.19 - 5.3.29
Parse error: syntax error, unexpected T_USE, expecting T_FUNCTION in /in/BvEnn on line 10
Process exited with code 255.