php-vn-lib/lib/type.php

<?php

namespace Vn\Lib;

class Time extends \DateTime {}

class Date extends \DateTime {}

class Type
{
	const NUL       = 1;
	const BOOLEAN   = 2;
	const INTEGER   = 3;
	const DOUBLE    = 4;
	const STRING    = 5;
	const OBJECT    = 6;
	const TIME      = 7;
	const DATE      = 8;
	const DATE_TIME = 9;

	static function get($value)
	{
		if (is_bool($value))
			return self::BOOLEAN;
		elseif (is_int($value))
			return self::INTEGER;
		elseif (is_float($value))
			return self::DOUBLE;
		elseif (is_string($value))
			return self::STRING;
		elseif (is_object($value))
		{
			if ($value instanceof Time)
				return self::TIME;
			elseif ($value instanceof Date)
				return self::DATE;
			elseif ($value instanceof \DateTime)
				return self::DATE_TIME;
			else
				return self::OBJECT;
		}
	
		return self::NUL;
	}

	static function set(& $value, $type)
	{
		switch ($type)
		{
			case self::INTEGER:
				settype($value, 'integer');
				break;
			case self::DOUBLE:
				settype($value, 'float');
				break;
			case self::STRING:
				settype($value, 'string');
				break;
			case self::BOOLEAN:
				settype($value, 'boolean');
				break;
			case self::NUL:
				$value = NULL;
				break;
		}
	}
}