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run code in 500+ PHP versions simultaneously
<?php trait TraitA{ public function sayHello(){ echo 'Hello world!'; } } class ClassC{ use TraitA{ sayHello as private sayHelloPL; } } $objC = new ClassC(); $objC->sayHello(); // WORKS !!!
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.21, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.21, 8.5.0 - 8.5.7
Hello world!

preferences:
95.37 ms | 1490 KiB | 4 Q