ion/src/Ion/Enum.php

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<?php
/**
* Ion
*
* Building blocks for web development
*
* @package Ion
* @author Timothy J. Warren
* @copyright Copyright (c) 2015 - 2016
* @license MIT
*/
namespace Aviat\Ion;
use ReflectionClass;
/**
* Class emulating an enumeration type
*
* @method bool isValid(mixed $key)
* @method array getConstList()
*/
abstract class Enum {
use StaticInstance;
/**
* Return the list of constant values for the Enum
*
* @return array
*/
protected function getConstList()
{
$reflect = new ReflectionClass($this);
return $reflect->getConstants();
}
/**
* Verify that a constant value is valid
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* @param mixed $key
* @return boolean
*/
protected function isValid($key)
{
$values = array_values($this->getConstList());
return in_array($key, $values);
}
}
// End of Enum.php