<?php error_reporting(E_ALL); trait HelloWorld { public function sayHello() { echo 'Hello World!'; } } class MyClass { use HelloWorld { sayHello as private sayHelloWorld; } public function callPrivateAlias() { $this->sayHelloWorld(); } } $o = new MyClass(); $o->sayHello(); $o->callPrivateAlias(); $o->sayHelloWorld();