<?php
namespace Hamcrest;

/**
 * Convenient base class for Matchers that require a value of a specific type.
 * This simply checks the type.
 *
 * While it may seem a useless exercise to have this in PHP, objects cannot
 * be cast to certain data types such as numerics (or even strings if
 * __toString() has not be defined).
 */

abstract class TypeSafeMatcher extends BaseMatcher
{

    /* Types that PHP can compare against */
    const TYPE_ANY = 0;
    const TYPE_STRING = 1;
    const TYPE_NUMERIC = 2;
    const TYPE_ARRAY = 3;
    const TYPE_OBJECT = 4;
    const TYPE_RESOURCE = 5;
    const TYPE_BOOLEAN = 6;

    /**
     * The type that is required for a safe comparison
     *
     * @var int
     */
    private $_expectedType;

    /**
     * The subtype (e.g. class for objects) that is required
     *
     * @var string
     */
    private $_expectedSubtype;

    public function __construct($expectedType, $expectedSubtype = null)
    {
        $this->_expectedType = $expectedType;
        $this->_expectedSubtype = $expectedSubtype;
    }

    final public function matches($item)
    {
        return $this->_isSafeType($item) && $this->matchesSafely($item);
    }

    final public function describeMismatch($item, Description $mismatchDescription)
    {
        if (!$this->_isSafeType($item)) {
            parent::describeMismatch($item, $mismatchDescription);
        } else {
            $this->describeMismatchSafely($item, $mismatchDescription);
        }
    }

    // -- Protected Methods

    /**
     * The item will already have been checked for the specific type and subtype.
     */
    abstract protected function matchesSafely($item);

    /**
     * The item will already have been checked for the specific type and subtype.
     */
    abstract protected function describeMismatchSafely($item, Description $mismatchDescription);

    // -- Private Methods

    private function _isSafeType($value)
    {
        switch ($this->_expectedType) {

            case self::TYPE_ANY:
                return true;

            case self::TYPE_STRING:
                return is_string($value) || is_numeric($value);

            case self::TYPE_NUMERIC:
                return is_numeric($value) || is_string($value);

            case self::TYPE_ARRAY:
                return is_array($value);

            case self::TYPE_OBJECT:
                return is_object($value)
                        && ($this->_expectedSubtype === null
                                || $value instanceof $this->_expectedSubtype);

            case self::TYPE_RESOURCE:
                return is_resource($value)
                        && ($this->_expectedSubtype === null
                                || get_resource_type($value) == $this->_expectedSubtype);

            case self::TYPE_BOOLEAN:
                return true;

            default:
                return true;

        }
    }
}

.NET Framework

Project Request

ProjectC

Vehicle Maintenance

Movie Navigator

Customers Exchange

ATM

.NET Core

Mail Daemon

Custom

Buns of code

PHP

Mediabox

Loan Castle

Content Management

Laravel

Phone Check

Frontend

Forex Wall

Business projects

Certification Center

Amerikas Auto

Pet projects

Geolocation Assistant

Web Dynamics

Blackball

Good old times

DOS Clock

BrainOut

Airport Administrator

Atomizer

Mediabox