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<?php |
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/** |
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* This file is part of the Phalcon Framework. |
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* |
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* (c) Phalcon Team <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE.txt |
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* file that was distributed with this source code. |
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*/ |
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declare(strict_types=1); |
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namespace Phalcon; |
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use ArrayAccess; |
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use Countable; |
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use Generator; |
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use IteratorAggregate; |
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use JsonSerializable; |
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use Phalcon\Helper\Json; |
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use Serializable; |
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use function array_key_exists; |
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use function array_keys; |
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use function array_values; |
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use function is_object; |
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use function mb_strtolower; |
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use function method_exists; |
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use function serialize; |
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use function settype; |
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use function strtolower; |
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use function unserialize; |
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/** |
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* `Phalcon\Collection` is a supercharged object oriented array. It implements: |
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* - [ArrayAccess](https://www.php.net/manual/en/class.arrayaccess.php) |
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* - [Countable](https://www.php.net/manual/en/class.countable.php) |
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* - |
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* [IteratorAggregate](https://www.php.net/manual/en/class.iteratoraggregate.php) |
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* - |
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* [JsonSerializable](https://www.php.net/manual/en/class.jsonserializable.php) |
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* - [Serializable](https://www.php.net/manual/en/class.serializable.php) |
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* |
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* It can be used in any part of the application that needs collection of data |
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* Such implementations are for instance accessing globals `$_GET`, `$_POST` |
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* etc. |
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* |
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* @property array $data |
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* @property bool $insensitive |
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* @property array $lowerKeys |
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*/ |
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class Collection implements |
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ArrayAccess, |
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Countable, |
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IteratorAggregate, |
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JsonSerializable, |
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Serializable |
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{ |
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/** |
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* @var array |
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*/ |
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protected $data = []; |
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/** |
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* @var bool |
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*/ |
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protected $insensitive = true; |
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/** |
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* @var array |
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*/ |
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protected $lowerKeys = []; |
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/** |
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* Collection constructor. |
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* |
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* @param array $data |
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* @param bool $insensitive |
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*/ |
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public function __construct(array $data = [], bool $insensitive = true) |
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{ |
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$this->insensitive = $insensitive; |
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$this->init($data); |
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} |
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/** |
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* Magic getter to get an element from the collection |
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* |
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* @param string $element |
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* |
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* @return mixed|null |
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*/ |
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public function __get(string $element) |
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{ |
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return $this->get($element); |
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} |
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/** |
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* Magic isset to check whether an element exists or not |
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* |
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* @param string $element |
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* |
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* @return bool |
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*/ |
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public function __isset(string $element): bool |
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{ |
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return $this->has($element); |
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} |
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/** |
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* Magic setter to assign values to an element |
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* |
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* @param string $element |
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* @param mixed $value |
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*/ |
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public function __set(string $element, $value): void |
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{ |
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$this->set($element, $value); |
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} |
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/** |
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* Magic unset to remove an element from the collection |
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* |
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* @param string $element |
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*/ |
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public function __unset(string $element): void |
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{ |
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$this->remove($element); |
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} |
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/** |
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* Clears the internal collection |
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*/ |
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public function clear(): void |
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{ |
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$this->data = []; |
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$this->lowerKeys = []; |
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} |
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/** |
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* Count elements of an object. |
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* |
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* @return int |
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*/ |
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public function count(): int |
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{ |
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return count($this->data); |
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} |
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/** |
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* Get the element from the collection |
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* |
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* @param string $element |
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* @param mixed|null $defaultValue |
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* @param string|null $cast |
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* |
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* @return mixed |
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*/ |
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public function get( |
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string $element, |
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$defaultValue = null, |
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string $cast = null |
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) { |
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$element = ($this->insensitive) ? strtolower($element) : $element; |
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if (!array_key_exists($element, $this->lowerKeys)) { |
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return $defaultValue; |
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} |
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$key = $this->lowerKeys[$element]; |
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$value = $this->data[$key]; |
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if (null !== $cast) { |
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settype($value, $cast); |
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} |
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return $value; |
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} |
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/** |
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* Returns the generator of the class |
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* |
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* @return Generator |
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*/ |
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public function getIterator(): Generator |
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{ |
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foreach ($this->data as $key => $value) { |
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yield $key => $value; |
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} |
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} |
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/** |
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* Returns the keys (insensitive or not) of the collection |
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* |
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* @param bool $insensitive |
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* |
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* @return array |
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*/ |
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public function getKeys(bool $insensitive = true): array |
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{ |
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if ($insensitive) { |
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return array_keys($this->lowerKeys); |
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} else { |
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return array_keys($this->data); |
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} |
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} |
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/** |
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* Returns the values of the internal array |
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* |
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* @return array |
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*/ |
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public function getValues(): array |
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{ |
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return array_values($this->data); |
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} |
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/** |
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* Get the element from the collection |
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* |
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* @param string $element |
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* |
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* @return bool |
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*/ |
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public function has(string $element): bool |
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{ |
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if ($this->insensitive) { |
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$element = strtolower($element); |
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} |
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return isset($this->lowerKeys[$element]); |
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} |
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/** |
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* Initialize internal array |
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* |
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* @param array $data |
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*/ |
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public function init(array $data = []): void |
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{ |
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foreach ($data as $key => $value) { |
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$this->setData($key, $value); |
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} |
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} |
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/** |
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* Specify data which should be serialized to JSON |
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* |
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* @link https://php.net/manual/en/jsonserializable.jsonserialize.php |
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*/ |
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public function jsonSerialize(): array |
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{ |
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$records = []; |
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foreach ($this->data as $key => $value) { |
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if (is_object($value) && method_exists($value, "jsonSerialize")) { |
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$records[$key] = $value->jsonSerialize(); |
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} else { |
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$records[$key] = $value; |
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} |
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} |
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return $records; |
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} |
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/** |
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* Whether a offset exists |
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* |
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* @link https://php.net/manual/en/arrayaccess.offsetexists.php |
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* |
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* @param mixed $element |
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* |
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* @return bool |
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*/ |
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public function offsetExists($element): bool |
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{ |
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$element = (string) $element; |
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return $this->has($element); |
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} |
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/** |
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* Offset to retrieve |
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* |
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* @link https://php.net/manual/en/arrayaccess.offsetget.php |
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* |
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* @param mixed $element |
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* |
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* @return mixed |
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*/ |
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public function offsetGet($element) |
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{ |
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$element = (string) $element; |
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return $this->get($element); |
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} |
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/** |
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* Offset to set |
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* |
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* @link https://php.net/manual/en/arrayaccess.offsetset.php |
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* |
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* @param mixed $element |
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* @param mixed $value |
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*/ |
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public function offsetSet($element, $value): void |
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{ |
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$element = (string) $element; |
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$this->set($element, $value); |
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} |
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/** |
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* Offset to unset |
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* |
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* @link https://php.net/manual/en/arrayaccess.offsetunset.php |
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* |
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* @param mixed $element |
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*/ |
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public function offsetUnset($element): void |
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{ |
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$element = (string) $element; |
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$this->remove($element); |
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} |
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/** |
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* Delete the element from the collection |
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* |
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* @param string $element |
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*/ |
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public function remove(string $element): void |
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{ |
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if ($this->has($element)) { |
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if ($this->insensitive) { |
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$element = strtolower($element); |
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} |
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$value = $this->lowerKeys[$element]; |
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unset($this->lowerKeys[$element]); |
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unset($this->data[$value]); |
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} |
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} |
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/** |
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* Set an element in the collection |
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* |
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* @param string $element |
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* @param mixed $value |
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*/ |
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public function set(string $element, $value): void |
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{ |
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$this->setData($element, $value); |
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} |
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/** |
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* String representation of object |
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* |
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* @link https://php.net/manual/en/serializable.serialize.php |
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*/ |
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public function serialize(): string |
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{ |
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return serialize($this->toArray()); |
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} |
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/** |
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* Returns the object in an array format |
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*/ |
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public function toArray(): array |
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{ |
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return $this->data; |
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} |
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/** |
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* Returns the object in a JSON format |
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* |
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* The default string uses the following options for json_encode |
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* |
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* JSON_HEX_TAG, JSON_HEX_APOS, JSON_HEX_AMP, JSON_HEX_QUOT, |
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* JSON_UNESCAPED_SLASHES |
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* |
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* @see https://www.ietf.org/rfc/rfc4627.txt |
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* |
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* @param int $options |
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* |
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* @return string |
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*/ |
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public function toJson(int $options = 79): string |
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{ |
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return Json::encode($this->jsonSerialize(), $options); |
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} |
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/** |
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* Constructs the object |
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* |
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* @link https://php.net/manual/en/serializable.unserialize.php |
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* |
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* @param string $serialized |
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*/ |
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|
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public function unserialize($serialized): void |
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{ |
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$serialized = (string) $serialized; |
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$data = unserialize($serialized); |
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$this->init($data); |
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} |
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/** |
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* Internal method to set data |
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|
|
|
* |
413
|
|
|
* @param mixed $element |
414
|
|
|
* @param mixed $value |
415
|
|
|
*/ |
416
|
314 |
|
protected function setData($element, $value): void |
417
|
|
|
{ |
418
|
314 |
|
$element = (string) $element; |
419
|
314 |
|
$key = ($this->insensitive) ? mb_strtolower($element) : $element; |
420
|
|
|
|
421
|
314 |
|
$this->data[$element] = $value; |
422
|
314 |
|
$this->lowerKeys[$key] = $element; |
423
|
314 |
|
} |
424
|
|
|
} |
425
|
|
|
|