PHP code example of frankvanhest / value-objects

    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

    

frankvanhest / value-objects example snippets

use FrankVanHest\ValueObjects\Abstracts\FloatValueObject;

final readonly class Money extends FloatValueObject
{
    protected function assert(float $value): void
    {
        if ($value < 0) {
            throw new \InvalidArgumentException('Only a value greater than zero is allowed');
        }
    }
}

use FrankVanHest\ValueObjects\Abstracts\FloatValueObject;
use FrankVanHest\ValueObjects\Interfaces\StringValueObject;

final readonly class Money extends FloatValueObject implements StringValueObject
{
    protected function assert(float $value): void
    {
        if ($value < 0) {
            throw new \InvalidArgumentException('Only a value greater than zero is allowed');
        }
    }
    
    public function toString(): string
    {
        return sprintf('The value of Money is %f', $this->asFloat());
    }
    
    public static function fromString(string $value): static
    {
        if (!is_numeric($value)) {
            throw new \InvalidArgumentException('Only numeric values are allowed');
        }
        
        return new static((float)$value);
    }
}

use FrankVanHest\ValueObjects\Interfaces\FloatValueModifier;

final readonly class DivideBy implements FloatValueModifier
{
    public function __construct(private float $divideBy)
    {    
    }
    
    public function modify(float $value): float
    {
        return $value / $this->divideBy;
    }
}

use FrankVanHest\ValueObjects\Factories\FloatValueObjectFactory;

$money = FloatValueObjectFactory::create(Money::class, 100.50, new DivideBy(10));

$moneyA = Money::fromFloat(10.25);
$moneyB = Money::fromFloat(10.25);
$moneyC = Money::fromFloat(1.50);

$moneyA->equals($moneyA); // Returns true
$moneyA->equals($moneyB); // Returns true
$moneyA->equals($moneyC); // Returns false
$moneyA->equals(null); // Returns false