DesignPatternsPHP/Behavioral/Specification/AndSpecification.php

<?php
declare(strict_types=1);

namespace DesignPatterns\Behavioral\Specification;

class AndSpecification implements Specification
{
    /**
     * @var Specification[]
     */
    private $specifications;

    /**
     * @param Specification[] ...$specifications
     */
    public function __construct(Specification ...$specifications)
    {
        $this->specifications = $specifications;
    }

    /**
     * if at least one specification is false, return false, else return true.
     */
    public function isSatisfiedBy(Item $item): bool
    {
        foreach ($this->specifications as $specification) {
            if (!$specification->isSatisfiedBy($item)) {
                return false;
            }
        }

        return true;
    }
}