CzProject\TypeSystem

Abstraction for PHP type system.

Installation

Download a latest package or use Composer:

composer require czproject/type-system

CzProject\TypeSystem requires PHP 7.4 or later.

Usage

use CzProject\TypeSystem\Types;

Types::scalar();
Types::integer();
Types::float();
Types::string();
Types::nonEmptyString();
Types::bool();
Types::true();
Types::false();
Types::null();
Types::object(\DateTimeImmutable::class);
Types::union(Types::string(), Types::integer(), Types::bool());
Types::nullable(Types::string());
Types::listOf(Types::string());

All types implement interface Type.

Casting

use CzProject\TypeSystem\Types;

$castedValue = Types::scalar()->castValue($value);
$castedValue = Types::integer()->castValue($value);
$castedValue = Types::float()->castValue($value);
$castedValue = Types::string()->castValue($value);
$castedValue = Types::nonEmptyString()->castValue($value);
$castedValue = Types::bool()->castValue($value);
$castedValue = Types::true()->castValue($value);
$castedValue = Types::false()->castValue($value);
$castedValue = Types::null()->castValue($value);
$castedValue = Types::object(\DateTimeImmutable::class)->castValue($value);
$castedValue = Types::union(Types::string(), Types::integer(), Types::bool())->castValue($value);
$castedValue = Types::nullable(Types::string())->castValue($value);
$castedValue = Types::listOf(Types::string())->castValue($value);

Or you can use simplified casting helper:

use CzProject\TypeSystem\Cast;

$castedValue = Cast::scalar($value);
$castedValue = Cast::integer($value);
$castedValue = Cast::integerOrNull($value);
$castedValue = Cast::float($value);
$castedValue = Cast::floatOrNull($value);
$castedValue = Cast::string($value);
$castedValue = Cast::stringOrNull($value);
$castedValue = Cast::nonEmptyString($value);
$castedValue = Cast::nonEmptyStringOrNull($value);
$castedValue = Cast::bool($value);
$castedValue = Cast::boolOrNull($value);

Every type throws SorryNonConvertableValue exception for non convertable values.

	try {
		Types::string()->castValue($value); // or Cast::string($value)

	} catch (CzProject\TypeSystem\SorryNonConvertableValue $e) {
		var_dump($e->getValue());
		var_dump($e->getType());
	}

Value validation

Checks if value is exactly of specific type.

use CzProject\TypeSystem\Types;

$isValid = Types::scalar()->isValueValid($value);
$isValid = Types::integer()->isValueValid($value);
$isValid = Types::float()->isValueValid($value);
$isValid = Types::string()->isValueValid($value);
$isValid = Types::nonEmptyString()->isValueValid($value);
$isValid = Types::bool()->isValueValid($value);
$isValid = Types::true()->isValueValid($value);
$isValid = Types::false()->isValueValid($value);
$isValid = Types::null()->isValueValid($value);
$isValid = Types::object(\DateTimeImmutable::class)->isValueValid($value);
$isValid = Types::union(Types::string(), Types::integer(), Types::bool())->isValueValid($value);
$isValid = Types::nullable(Types::string())->isValueValid($value);
$isValid = Types::listOf(Types::string())->isValueValid($value);

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License: New BSD License
Author: Jan Pecha, https://www.janpecha.cz/