README

PHP Data type assertions.

This package provides helper methods to validate variable data type. While there are handy native methods like is_string() or is_array(), you can have then check for single type at a time. This package allows to validate against type union (i.e. STRING|INT) or ensure that priovided string refers to existing class. Also, contrary to native methods, if there's no match and variable contains data of non-welcomed type, exception is thrown which lets you simplify your code flow.

Installation

composer require --dev marcin-orlowski/type-asserts

Usage example

The following code ensures $var is of either int or float type before math is done:

use MarcinOrlowski\TypeAsserts\Type;
use MarcinOrlowski\TypeAsserts\Validator;

$var = 'foo';

Validator::assertIsType($var, [Type::INT, Type::FLOAT]);
$result = $var * 5;

The following code ensures $var refers to existing class, before we try to instantiate it:

use MarcinOrlowski\TypeAsserts\Type;
use MarcinOrlowski\TypeAsserts\Validator;

$cls = 'non-existing';

Validator::assertIsType($cls, Type::EXISTING_CLASS);
$obj = new $cls;

License

• Written and copyrighted ©2014-2022 by Marcin Orlowski
• Open-sourced software licensed under the MIT license