/home/kueuepay/www/vendor/phpunit/phpunit/src/Framework/Constraint/Callback.php
<?php declare(strict_types=1);
/*
 * This file is part of PHPUnit.
 *
 * (c) Sebastian Bergmann <sebastian@phpunit.de>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
namespace PHPUnit\Framework\Constraint;

/**
 * @psalm-template CallbackInput of mixed
 *
 * @no-named-arguments Parameter names are not covered by the backward compatibility promise for PHPUnit
 */
final class Callback extends Constraint
{
    /**
     * @var callable
     *
     * @psalm-var callable(CallbackInput $input): bool
     */
    private $callback;

    /** @psalm-param callable(CallbackInput $input): bool $callback */
    public function __construct(callable $callback)
    {
        $this->callback = $callback;
    }

    /**
     * Returns a string representation of the constraint.
     */
    public function toString(): string
    {
        return 'is accepted by specified callback';
    }

    /**
     * Evaluates the constraint for parameter $value. Returns true if the
     * constraint is met, false otherwise.
     *
     * @param mixed $other value or object to evaluate
     *
     * @psalm-param CallbackInput $other
     */
    protected function matches($other): bool
    {
        return ($this->callback)($other);
    }
}
Best Practice

Best Practices

To ensure a smooth integration process and optimal performance, follow these best practices:

  1. Use secure HTTPS connections for all API requests.
  2. Implement robust error handling to handle potential issues gracefully.
  3. Regularly update your integration to stay current with any API changes or enhancements.