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<?php
/**
* Zend Framework (http://framework.zend.com/)
*
* @link http://github.com/zendframework/zf2 for the canonical source repository
* @copyright Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
namespace Zend\Stdlib;
use ArrayObject as PhpArrayObject;
class Parameters extends PhpArrayObject implements ParametersInterface
{
/**
* Constructor
*
* Enforces that we have an array, and enforces parameter access to array
* elements.
*
* @param array $values
*/
public function __construct(array $values = null)
{
if (null === $values) {
$values = array();
}
parent::__construct($values, ArrayObject::ARRAY_AS_PROPS);
}
/**
* Populate from native PHP array
*
* @param array $values
* @return void
*/
public function fromArray(array $values)
{
$this->exchangeArray($values);
}
/**
* Populate from query string
*
* @param string $string
* @return void
*/
public function fromString($string)
{
$array = array();
parse_str($string, $array);
$this->fromArray($array);
}
/**
* Serialize to native PHP array
*
* @return array
*/
public function toArray()
{
return $this->getArrayCopy();
}
/**
* Serialize to query string
*
* @return string
*/
public function toString()
{
return http_build_query($this);
}
/**
* Retrieve by key
*
* Returns null if the key does not exist.
*
* @param string $name
* @return mixed
*/
public function offsetGet($name)
{
if ($this->offsetExists($name)) {
return parent::offsetGet($name);
}
return null;
}
/**
* @param string $name
* @param mixed $default optional default value
* @return mixed
*/
public function get($name, $default = null)
{
if ($this->offsetExists($name)) {
return parent::offsetGet($name);
}
return $default;
}
/**
* @param string $name
* @param mixed $value
* @return Parameters
*/
public function set($name, $value)
{
$this[$name] = $value;
return $this;
}
}