traits_resolve.php

<?php

/**
*
*/

trait A
{
    public function smallTalk() {
        echo 'a';
    }
    public function bigTalk() {
        echo 'A';
    }
}

trait B
{
    public function smallTalk() {
        echo 'b';
    }
    public function bigTalk() {
        echo 'B';
    }
}

trait C
{
    use A, B {
        B::smallTalk insteadof A;
        A::bigTalk insteadof B;
        B::bigTalk as talk;
    }
}

class Talker
{
    use A, B {
        B::smallTalk insteadof A;
        A::bigTalk insteadof B;
        B::bigTalk as talk;
    }
}

class Talker2
{
    use C;
}

$t = new Talker();
$t->smallTalk();

$t2 = new Talker2();
$t2->smallTalk();