In PHP, how do I deduplicate traits for beginners?

In PHP, when using traits, it's possible to incorporate the same trait into multiple classes. However, this can lead to a "duplicate trait" error if the trait's methods conflict. To prevent these issues and deduplicate traits, you can utilize the "insteadof" keyword or alias methods. Here's how to do it:

trait TraitA {
    public function sayHello() {
        echo "Hello from Trait A";
    }
}

trait TraitB {
    public function sayHello() {
        echo "Hello from Trait B";
    }
}

class MyClass {
    use TraitA, TraitB {
        TraitB::sayHello insteadof TraitA;
        TraitA::sayHello as sayHelloFromA;
    }
}

$obj = new MyClass();
$obj->sayHello(); // Outputs: Hello from Trait B
$obj->sayHelloFromA(); // Outputs: Hello from Trait A

PHP traits deduplicate insteadof alias methods

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