Strategies

DateTimeImmutableFormatter

Available since version 3.1.0

DateTimeImmutableFormatterStrategy provides bidirectional conversion between strings and DateTimeImmutable instances.

The strategy uses DateTimeFormatterStrategy for conversion where the input and output formats can be set.

Basic Usage

The following code example shows standalone usage without adding the strategy to a hydrator.

Create and configure strategy

Create the strategy and set the input and output formats via the DateTimeFormatterStrategy.

$strategy = new Laminas\Hydrator\Strategy\DateTimeImmutableFormatterStrategy(
    new Laminas\Hydrator\Strategy\DateTimeFormatterStrategy('Y-m-d')
);

Hydrate data

$hydrated = $strategy->hydrate('2020-07-01');

var_dump($hydrated instanceof DateTimeImmutable); // true

Extract data

$extracted = $strategy->extract(
    DateTimeImmutable::createFromFormat('Y-m-d', '2020-07-01')
);

echo $extracted // '2020-07-01'

Example

The following example demonstrates hydration for a class with a property.

An example class which represents a music album with a release date:

class Album
{
    private ?DateTimeImmutable $releaseDate;

    public function __construct(?DateTimeImmutable $releaseDate = null)
    {
        $this->releaseDate = $releaseDate;
    }

    public function getReleaseDate() : ?DateTimeImmutable
    {
        return $this->releaseDate;
    }
}

Create hydrator and add strategy

Create a hydrator and add DateTimeImmutableFormatterStrategy as strategy:

$hydrator = new Laminas\Hydrator\ReflectionHydrator();
$hydrator->addStrategy(
    'releaseDate',
    new Laminas\Hydrator\Strategy\DateTimeImmutableFormatterStrategy(
        new Laminas\Hydrator\Strategy\DateTimeFormatterStrategy('Y-m-d')
    )
);

Hydrate data

Create an instance of the example class and hydrate data:

$album = new Album();
$hydrator->hydrate(['releaseDate' => '2020-07-01'], $album);

var_dump($album->getReleaseDate() instanceof DateTimeImmutable); // true

Extract data

$extracted = $hydrator->extract($album);

echo $extracted; // '2020-07-01'