<?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;

use function gettype;

use function is_array;
use function is_bool;
use function is_callable;
use function is_float;
use function is_int;
use function is_iterable;
use function is_numeric;
use function is_object;
use function is_scalar;
use function is_string;
use function sprintf;
use PHPUnit\Framework\Exception;

/**
 * @no-named-arguments Parameter names are not covered by the backward compatibility promise for PHPUnit
 */
final class IsType extends Constraint
{
    /**
     * @var string
     */
    public const TYPE_ARRAY = 'array';

    /**
     * @var string
     */
    public const TYPE_BOOL = 'bool';

    /**
     * @var string
     */
    public const TYPE_FLOAT = 'float';

    /**
     * @var string
     */
    public const TYPE_INT = 'int';

    /**
     * @var string
     */
    public const TYPE_NULL = 'null';

    /**
     * @var string
     */
    public const TYPE_NUMERIC = 'numeric';

    /**
     * @var string
     */
    public const TYPE_OBJECT = 'object';

    /**
     * @var string
     */
    public const TYPE_RESOURCE = 'resource';

    /**
     * @var string
     */
    public const TYPE_CLOSED_RESOURCE = 'resource (closed)';

    /**
     * @var string
     */
    public const TYPE_STRING = 'string';

    /**
     * @var string
     */
    public const TYPE_SCALAR = 'scalar';

    /**
     * @var string
     */
    public const TYPE_CALLABLE = 'callable';

    /**
     * @var string
     */
    public const TYPE_ITERABLE = 'iterable';

    /**
     * @var array<string,bool>
     */
    private const KNOWN_TYPES = [
        'array'             => true,
        'boolean'           => true,
        'bool'              => true,
        'double'            => true,
        'float'             => true,
        'integer'           => true,
        'int'               => true,
        'null'              => true,
        'numeric'           => true,
        'object'            => true,
        'real'              => true,
        'resource'          => true,
        'resource (closed)' => true,
        'string'            => true,
        'scalar'            => true,
        'callable'          => true,
        'iterable'          => true,
    ];

    /**
     * @var string
     */
    private $type;

    /**
     * @throws Exception
     */
    public function __construct(string $type)
    {
        if (!isset(self::KNOWN_TYPES[$type])) {
            throw new Exception(
                sprintf(
                    'Type specified for PHPUnit\Framework\Constraint\IsType <%s> ' .
                    'is not a valid type.',
                    $type,
                ),
            );
        }

        $this->type = $type;
    }

    /**
     * Returns a string representation of the constraint.
     */
    public function toString(): string
    {
        return sprintf(
            'is of type "%s"',
            $this->type,
        );
    }

    /**
     * Evaluates the constraint for parameter $other. Returns true if the
     * constraint is met, false otherwise.
     *
     * @param mixed $other value or object to evaluate
     */
    protected function matches($other): bool
    {
        switch ($this->type) {
            case 'numeric':
                return is_numeric($other);

            case 'integer':
            case 'int':
                return is_int($other);

            case 'double':
            case 'float':
            case 'real':
                return is_float($other);

            case 'string':
                return is_string($other);

            case 'boolean':
            case 'bool':
                return is_bool($other);

            case 'null':
                return null === $other;

            case 'array':
                return is_array($other);

            case 'object':
                return is_object($other);

            case 'resource':
                $type = gettype($other);

                return $type === 'resource' || $type === 'resource (closed)';

            case 'resource (closed)':
                return gettype($other) === 'resource (closed)';

            case 'scalar':
                return is_scalar($other);

            case 'callable':
                return is_callable($other);

            case 'iterable':
                return is_iterable($other);

            default:
                return false;
        }
    }
}

• [F] IsInstanceOf.php
  Delete
• [F] IsNull.php
  Delete
• [F] IsType.php
  Delete

Blog Section

Discover the Latest in Digital Payments and NFC Technology

Dive into our blog to explore the cutting-edge trends in digital payments and NFC technology. Stay updated on the innovations that are revolutionizing transactions, boosting security, and making payments quicker and more convenient. Learn how these advancements are shaping the future of financial interactions and driving the global transition towards a cashless world.

The Rise of Contactless Payments:...

In recent years, contactless payments have surged in popularity, driven...

Visit Blog

March 27, 2024

Enhancing Payment Security: The Role...

As digital transactions proliferate, ensuring robust payment security is more critical than ever. Two foundational...

Visit Blog

March 27, 2024

The Future of Digital Wallets:...

Digital wallets have fundamentally transformed how we manage money, offering a streamlined, secure, and highly...

Visit Blog

March 27, 2024