PHP types library which contains value classes which represent the php types

Author: Joost Nijhuis <jnijhuis81@gmail.com>

This library has some value classes which represent a PHP type. These value classes can be constructed based on the PHP type name or based on a value. There are 2 pseudo type classes: Jojo1981\PhpTypes\MixedType and Jojo1981\PhpTypes\MultiType which will function as composite. Also, an abstract factory class is included: Jojo1981\PhpTypes\AbstractType.

The following types are supported, with their aliases:

• array
• bool (boolean)
• callable (callback)
• class
• float (number, real, double)
• int (integer)
• iterable
• null
• object
• resource
• string (text)
• void

Pseudo types:

• mixed
• multi

Installation

Library

git clone https://github.com/jojo1981/php-types.git

Composer

Install PHP Composer

composer require jojo1981/php-types

Basic usage

<?php

require 'vendor/autoload.php';

$integerType = \Jojo1981\PhpTypes\AbstractType::createFromTypeName('int');
$integerType->isAssignableValue('text'); // will return false
$integerType->isAssignableValue(28); // will return true

$floatType1 = \Jojo1981\PhpTypes\AbstractType::createFromValue(5.0);
$floatType1->isAssignableValue(true); // will return false
$floatType1->isAssignableValue('text'); // will return false
$floatType1->isAssignableValue(10); // will return false
$floatType1->isAssignableValue(10.0); // will return true

$floatType2 = \Jojo1981\PhpTypes\AbstractType::createFromTypeName('number');
$floatType2->isAssignableValue(true); // will return false
$floatType2->isAssignableValue('text'); // will return false
$floatType2->isAssignableValue(1); // will return false
$floatType2->isAssignableValue(1.0); // will return true

$stringType = \Jojo1981\PhpTypes\AbstractType::createFromValue('string');
$stringType->isAssignableValue(true); // will return false
$stringType->isAssignableValue('text'); // will return true

// Other types: array, bool, callable, iterable, null, resource, void

// Object | Class types

$objectType = \Jojo1981\PhpTypes\AbstractType::createFromTypeName('object');
$objectType->isAssignableValue(true); // will return false
$objectType->isAssignableValue(new \stdClass()); // will return true
$objectType->isAssignableValue(new \Jojo1981\PhpTypes\TestSuite\Fixture\TestEntity()); // will return true (for all object types)

$classType1 = \Jojo1981\PhpTypes\AbstractType::createFromValue(new \Jojo1981\PhpTypes\TestSuite\Fixture\TestEntity());
$classType1->isAssignableValue(new \stdClass()); // will return false
$classType1->isAssignableValue(new \Jojo1981\PhpTypes\TestSuite\Fixture\TestEntity()); // will return true

$classType2 = \Jojo1981\PhpTypes\AbstractType::createFromTypeName(\Jojo1981\PhpTypes\TestSuite\Fixture\TestEntity::class);
$classType2->isAssignableValue(new \stdClass()); // will return false
$classType2->isAssignableValue(new \Jojo1981\PhpTypes\TestSuite\Fixture\TestEntityBase); // will return false
$classType2->isAssignableValue(new \Jojo1981\PhpTypes\TestSuite\Fixture\TestEntity()); // will return true

$classType3 = \Jojo1981\PhpTypes\AbstractType::createFromTypeName(\Jojo1981\PhpTypes\TestSuite\Fixture\InterfaceTestEntity::class);
$classType3->isAssignableValue(new \stdClass()); // will return false
$classType3->isAssignableValue(new \Jojo1981\PhpTypes\TestSuite\Fixture\TestEntityBase); // will return true
$classType3->isAssignableValue(new \Jojo1981\PhpTypes\TestSuite\Fixture\TestEntity()); // will return true

// Pseudo types
$mixedType = \Jojo1981\PhpTypes\AbstractType::createFromTypeName('mixed');
$mixedType->isAssignableValue(null); // will return true (always)
$mixedType->isPseudoType(); // will return true

$multiType = \Jojo1981\PhpTypes\AbstractType::createFromTypes([$stringType, $integerType]);
$multiType->isAssignableValue(true); // will return false
$multiType->isAssignableValue('text'); // will return true
$multiType->isAssignableValue(28); // will return true
$multiType->isPseudoType(); // will return true