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<?php |
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namespace Mundanity\Collection; |
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/** |
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* Implements a basic collection from an array. |
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* |
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*/ |
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class Collection implements CollectionInterface |
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{ |
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/** |
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* The data in the collection. |
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* |
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* @var array |
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* |
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*/ |
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protected $data = []; |
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/** |
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* Constructor |
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* |
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* @param array $data |
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* An array of data to populate the collection with. Note that existing |
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* indexes are removed. If indexes are significant, use KeyedCollection |
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* instead. |
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* |
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*/ |
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public function __construct(array $data = []) |
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{ |
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$this->data = array_values($data); |
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} |
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/** |
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* {@inheritdoc} |
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* |
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*/ |
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public static function fromCollection(CollectionInterface $collection) |
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{ |
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return new static($collection->toArray()); |
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} |
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/** |
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* {@inheritdoc} |
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* |
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*/ |
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public function has($item) |
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{ |
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return in_array($item, $this->data); |
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} |
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/** |
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* {@inheritdoc} |
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* |
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*/ |
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public function getWhere(callable $callable) |
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{ |
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foreach ($this->data as $item) { |
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if ($callable($item) === true) { |
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return is_object($item) ? clone $item : $item; |
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} |
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} |
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} |
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/** |
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* {@inheritdoc} |
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* |
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*/ |
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public function getAtIndex($index) |
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{ |
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if (!is_numeric($index)) { |
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return; |
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} |
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return isset($this->data[$index]) ? $this->data[$index] : null; |
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} |
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/** |
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* {@inheritdoc} |
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* |
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*/ |
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public function isEmpty() |
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{ |
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return empty($this->data); |
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} |
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/** |
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* Returns the number of items within the collection. |
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* |
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* @return int |
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* |
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*/ |
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public function count() |
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{ |
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return count($this->data); |
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} |
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/** |
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* Returns an iterator. |
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* |
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* @return \Traversable |
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* |
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*/ |
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public function getIterator() |
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{ |
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return new \ArrayIterator($this->data); |
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} |
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/** |
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* {@inheritdoc} |
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* |
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*/ |
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public function toArray() |
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{ |
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return $this->data; |
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} |
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/** |
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* {@inheritdoc} |
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* |
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*/ |
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public function filter(callable $callable) |
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{ |
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$data = array_filter($this->data, $callable, ARRAY_FILTER_USE_BOTH); |
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return new static($data); |
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} |
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/** |
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* {@inheritdoc} |
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* |
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*/ |
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public function map(callable $callable) |
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{ |
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return array_map($callable, $this->data); |
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} |
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} |
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mundanity /
collection
