03-dictionary.php

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<?php

declare(strict_types=1);

function toDictionary(): bool
{
    global $DIC;

    $refinery = $DIC->refinery();

    $transformation = $refinery->to()->dictOf(new \ILIAS\Refinery\To\Transformation\IntegerTransformation());

    $result = $transformation->transform(['sum' => 5, 'user_id' => 1, 'size' => 4]);

    return assert(['sum' => 5, 'user_id' => 1, 'size' => 4] === $result);
}