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<?php
namespace PhpValueObjects\Network;
use PhpValueObjects\AbstractStringValueObject;
use PhpValueObjects\Network\Exception\InvalidUrlException;
abstract class Url extends AbstractStringValueObject
{
/**
* @param string $value
*
* @throws InvalidUrlException
*/
protected function guard($value)
if (false === filter_var($value, FILTER_VALIDATE_URL)) {
throw new InvalidUrlException($value);
}