Ikki traitda bir xil nomli metod bo'lsa, nima qilish…

Traitlarda metod nomlari to‘qnashuvi bo‘lsa, bir nechta yechim variantlari mavjud:

insteadof prefiks operatori: Muayyan traitdan metodni tanlash imkonini beradi, boshqa traitdan bir xil nomdagi metodni e'tiborsiz qoldiradi.

<?php
trait TraitA {
    public function doSomething() {
        echo "TraitA dan";
    }
}

trait TraitB {
    public function doSomething() {
        echo "TraitB dan";
    }
}

class MyClass {
    use TraitA, TraitB {
        TraitA::doSomething insteadof TraitB; // TraitA metodidan foydalanamiz
    }
}

$obj = new MyClass();
$obj->doSomething(); // "TraitA dan" chiqaradi

Bir nechta istisnolarni belgilash mumkin:

<?php
trait TraitA {
    public function methodA() { echo "A_a"; }
    public function methodB() { echo "A_b"; }
}

trait TraitB {
    public function methodA() { echo "B_a"; }
    public function methodB() { echo "B_b"; }
}

class MyClass {
    use TraitA, TraitB {
        TraitA::methodA insteadof TraitB;
        TraitB::methodB insteadof TraitA;
    }
}

as prefiks operatori: Muqobil metodlardan birini nomini o‘zgartirish imkonini beradi.

<?php
trait TraitA {
    public function doSomething() {
        echo "TraitA dan";
    }
}

trait TraitB {
    public function doSomething() {
        echo "TraitB dan";
    }
}

class MyClass {
    use TraitA, TraitB {
        TraitB::doSomething as doSomethingFromB; // Metod nomini o‘zgartiramiz
    }

    public function callBoth() {
        $this->doSomething();        // TraitA metodini chaqiradi
        $this->doSomethingFromB(); // O‘zgartirilgan TraitB metodini chaqiradi
    }
}

$obj = new MyClass();
$obj->callBoth(); // "TraitA danTraitB dan" chiqaradi

as operatori insteadof bilan birga ishlatilishi mumkin va metodning ko‘rinishini o‘zgartirish imkonini beradi.

<?php
trait TraitA {
    private function internalMethod() {
        echo "TraitA dan maxfiy metod";
    }
}

class MyClass {
    use TraitA {
        internalMethod as public externalMethod; // Nomini o‘zgartiradi va jamoatga ochadi
    }
}

$obj = new MyClass();
$obj->externalMethod(); // "TraitA dan maxfiy metod" chiqaradi

Klassda aniq metod ta'rifi: Agar traitlarni ishlatadigan klassda ayni nomdagi metod aniq ta'riflangan bo‘lsa, bu metod trait metodlaridan ustun bo‘ladi.

<?php
trait TraitA {
    public function doSomething() {
        echo "TraitA dan";
    }
}

trait TraitB {
    public function doSomething() {
        echo "TraitB dan";
    }
}

class MyClass {
    use TraitA, TraitB;

    public function doSomething() { // Klass o‘z metodini ta'riflaydi
        echo "MyClass dan";
    }
}

$obj = new MyClass();
$obj->doSomething(); // "MyClass dan" chiqaradi

insteadof, as yoki metodni klassda qayta ta'riflamasdan, PHP trait metodlari bilan konfliktga tushgan klassni ishlatishda xato E_STRICT bilan chiqaradi.

Ikki traitda bir xil nomli metod bo'lsa, nima qilish kerak?