jaroslavtyc/granam-boolean

# Converter and object wrapper for an boolean

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## Hint

First of all, make sure you don't need just
a [simple  built-in bool validation](http://php.net/manual/en/function.filter-var.php)
.

Internally behaves same way as (bool)$value, but

- non-scalar values (arrays, resources, objects without \_\_toString etc.)
  raises exception
- objects with \_\_toString magic method are converted to string by that, then
  to bool
- null *can* be rejected by raise of an exception, *if* desired

```php
<?php
use Granam\Boolean\Boolean;

$booleanFromInteger = new Boolean(12345);
// bool(true)
var_dump($booleanFromInteger->getValue());

$booleanFromString = new Boolean('124578');
// bool(true)
var_dump($booleanFromString->getValue());

$booleanFromFloatString = new Boolean('987.654');
// bool(true)
var_dump($booleanFromFloatString->getValue());

$booleanFromZero = new Boolean(0);
// bool(false)
var_dump($booleanFromZero->getValue());

$booleanFromNull = new Boolean(null, false /* not strict */);
// bool(false)
var_dump($booleanFromNull->getValue());
// ...

// exception is raised (\Granam\Boolean\Tools\Exceptions\WrongParameterType)
new Boolean(null); // implicitly strict - NULL is "unknown" state and therefore forbidden

```