Method demo

examples/demo.php:1332–1358

()

class DestructuringShapeDemo
{
    public function demo(): void
    {
        // Named key from method return
        ['pen' => $pen, 'pencil' => $pencil] = $this->getToolKit();
        $pen->write();                    // Pen from 'pen' key
        $pencil->sketch();                // Pencil from 'pencil' key

        // Named key from @var annotated variable
        /** @var array{pen: Pen, pencil: Pencil, active: bool} $data */
        $data = getUnknownValue();
        ['pen' => $myPen, 'pencil' => $myPencil] = $data;
        $myPen->write();                  // Pen from 'pen' key
        $myPencil->sketch();              // Pencil from 'pencil' key

        // Positional from shape
        /** @var array{Pen, Pencil} $pair */
        $pair = getUnknownValue();
        [$first, $second] = $pair;
        $first->write();                  // Pen (positional index 0)
        $second->sketch();                // Pencil (positional index 1)

        // list() syntax
        /** @var array{recipe: Recipe, servings: int} $meal */
        $meal = getUnknownValue();
        list('recipe' => $recipe) = $meal;
        $recipe->ingredients;             // Recipe from 'recipe' key
    }

    /** @return array{pen: Pen, pencil: Pencil, count: int} */
    public function getToolKit(): array { return []; }