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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 ArrayAccess;
use Countable;
use IteratorAggregate;
use Serializable;
/**
* Custom framework ArrayObject implementation
*
* Extends version-specific "abstract" implementation.
*/
class ArrayObject implements IteratorAggregate, ArrayAccess, Serializable, Countable
{
/**
* Properties of the object have their normal functionality
* when accessed as list (var_dump, foreach, etc.).
*/
const STD_PROP_LIST = 1;
/**
* Entries can be accessed as properties (read and write).
*/
const ARRAY_AS_PROPS = 2;
/**
* @var array
*/
protected $storage;
/**
* @var int
*/
protected $flag;
/**
* @var string
*/
protected $iteratorClass;
/**
* @var array
*/
protected $protectedProperties;
/**
* Constructor
*
* @param array $input
* @param int $flags
* @param string $iteratorClass
*/
public function __construct($input = [], $flags = self::STD_PROP_LIST, $iteratorClass = 'ArrayIterator')
{
$this->setFlags($flags);
$this->storage = $input;
$this->setIteratorClass($iteratorClass);
$this->protectedProperties = array_keys(get_object_vars($this));
}
/**
* Returns whether the requested key exists
*
* @param mixed $key
* @return bool
*/
public function __isset($key)
{
if ($this->flag == self::ARRAY_AS_PROPS) {
return $this->offsetExists($key);
}
if (in_array($key, $this->protectedProperties)) {
throw new Exception\InvalidArgumentException('$key is a protected property, use a different key');
}
return isset($this->$key);
}
/**
* Sets the value at the specified key to value
*
* @param mixed $key
* @param mixed $value
* @return void
*/
public function __set($key, $value)
{
if ($this->flag == self::ARRAY_AS_PROPS) {
return $this->offsetSet($key, $value);
}
if (in_array($key, $this->protectedProperties)) {
throw new Exception\InvalidArgumentException('$key is a protected property, use a different key');
}
$this->$key = $value;
}
/**
* Unsets the value at the specified key
*
* @param mixed $key
* @return void
*/
public function __unset($key)
{
if ($this->flag == self::ARRAY_AS_PROPS) {
return $this->offsetUnset($key);
}
if (in_array($key, $this->protectedProperties)) {
throw new Exception\InvalidArgumentException('$key is a protected property, use a different key');
}
unset($this->$key);
}
/**
* Returns the value at the specified key by reference
*
* @param mixed $key
* @return mixed
*/
public function &__get($key)
{
$ret = null;
if ($this->flag == self::ARRAY_AS_PROPS) {
$ret =& $this->offsetGet($key);
return $ret;
}
if (in_array($key, $this->protectedProperties)) {
throw new Exception\InvalidArgumentException('$key is a protected property, use a different key');
}
return $this->$key;
}
/**
* Appends the value
*
* @param mixed $value
* @return void
*/
public function append($value)
{
$this->storage[] = $value;
}
/**
* Sort the entries by value
*
* @return void
*/
public function asort()
{
asort($this->storage);
}
/**
* Get the number of public properties in the ArrayObject
*
* @return int
*/
public function count()
{
return count($this->storage);
}
/**
* Exchange the array for another one.
*
* @param array|ArrayObject $data
* @return array
*/
public function exchangeArray($data)
{
if (! is_array($data) && ! is_object($data)) {
throw new Exception\InvalidArgumentException(
'Passed variable is not an array or object, using empty array instead'
);
}
if (is_object($data) && ($data instanceof self || $data instanceof \ArrayObject)) {
$data = $data->getArrayCopy();
}
if (! is_array($data)) {
$data = (array) $data;
}
$storage = $this->storage;
$this->storage = $data;
return $storage;
}
/**
* Creates a copy of the ArrayObject.
*
* @return array
*/
public function getArrayCopy()
{
return $this->storage;
}
/**
* Gets the behavior flags.
*
* @return int
*/
public function getFlags()
{
return $this->flag;
}
/**
* Create a new iterator from an ArrayObject instance
*
* @return \Iterator
*/
public function getIterator()
{
$class = $this->iteratorClass;
return new $class($this->storage);
}
/**
* Gets the iterator classname for the ArrayObject.
*
* @return string
*/
public function getIteratorClass()
{
return $this->iteratorClass;
}
/**
* Sort the entries by key
*
* @return void
*/
public function ksort()
{
ksort($this->storage);
}
/**
* Sort an array using a case insensitive "natural order" algorithm
*
* @return void
*/
public function natcasesort()
{
natcasesort($this->storage);
}
/**
* Sort entries using a "natural order" algorithm
*
* @return void
*/
public function natsort()
{
natsort($this->storage);
}
/**
* Returns whether the requested key exists
*
* @param mixed $key
* @return bool
*/
public function offsetExists($key)
{
return isset($this->storage[$key]);
}
/**
* Returns the value at the specified key
*
* @param mixed $key
* @return mixed
*/
public function &offsetGet($key)
{
$ret = null;
if (! $this->offsetExists($key)) {
return $ret;
}
$ret =& $this->storage[$key];
return $ret;
}
/**
* Sets the value at the specified key to value
*
* @param mixed $key
* @param mixed $value
* @return void
*/
public function offsetSet($key, $value)
{
$this->storage[$key] = $value;
}
/**
* Unsets the value at the specified key
*
* @param mixed $key
* @return void
*/
public function offsetUnset($key)
{
if ($this->offsetExists($key)) {
unset($this->storage[$key]);
}
}
/**
* Serialize an ArrayObject
*
* @return string
*/
public function serialize()
{
return serialize(get_object_vars($this));
}
/**
* Sets the behavior flags
*
* @param int $flags
* @return void
*/
public function setFlags($flags)
{
$this->flag = $flags;
}
/**
* Sets the iterator classname for the ArrayObject
*
* @param string $class
* @return void
*/
public function setIteratorClass($class)
{
if (class_exists($class)) {
$this->iteratorClass = $class;
return ;
}
if (strpos($class, '\\') === 0) {
$class = '\\' . $class;
if (class_exists($class)) {
$this->iteratorClass = $class;
return ;
}
}
throw new Exception\InvalidArgumentException('The iterator class does not exist');
}
/**
* Sort the entries with a user-defined comparison function and maintain key association
*
* @param callable $function
* @return void
*/
public function uasort($function)
{
if (is_callable($function)) {
uasort($this->storage, $function);
}
}
/**
* Sort the entries by keys using a user-defined comparison function
*
* @param callable $function
* @return void
*/
public function uksort($function)
{
if (is_callable($function)) {
uksort($this->storage, $function);
}
}
/**
* Unserialize an ArrayObject
*
* @param string $data
* @return void
*/
public function unserialize($data)
{
$ar = unserialize($data);
$this->protectedProperties = array_keys(get_object_vars($this));
$this->setFlags($ar['flag']);
$this->exchangeArray($ar['storage']);
$this->setIteratorClass($ar['iteratorClass']);
foreach ($ar as $k => $v) {
switch ($k) {
case 'flag':
$this->setFlags($v);
break;
case 'storage':
$this->exchangeArray($v);
break;
case 'iteratorClass':
$this->setIteratorClass($v);
break;
case 'protectedProperties':
break;
default:
$this->__set($k, $v);
}
}
}
}
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