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<?php |
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/** |
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* Part of the Fusion.Collection package. |
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* |
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* @license MIT |
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*/ |
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declare(strict_types=1); |
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namespace Fusion\Collection\Contracts; |
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use ArrayAccess; |
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use Iterator; |
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/** |
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* Implements core functionality for collections. |
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* |
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* @since 1.0.0 |
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*/ |
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abstract class AbstractCollection implements CollectionCoreInterface, ArrayAccess, Iterator |
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{ |
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/** @var array */ |
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protected $collection = []; |
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/** @var \Fusion\Collection\Contracts\CollectionValidationInterface */ |
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protected $validator; |
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/** {@inheritdoc} */ |
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public function clear(): void |
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{ |
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$this->collection = []; |
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} |
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/** {@inheritdoc} */ |
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public function remove($item): void |
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{ |
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foreach ($this->collection as $key => $value) |
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{ |
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if ($item === $value) |
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{ |
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$this->removeAt($key); |
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} |
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} |
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} |
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/** {@inheritdoc} */ |
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public function removeAt($key): void |
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{ |
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if ($this->offsetExists($key)) |
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{ |
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if (is_int($key)) |
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{ |
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array_splice($this->collection, $key, 1); |
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} |
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else |
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{ |
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if (is_string($key)) |
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{ |
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unset($this->collection[$key]); |
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} |
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} |
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} |
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} |
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/** |
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* Checks if an offset exists in the collection. |
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* |
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* @link http://php.net/manual/en/arrayaccess.offsetexists.php |
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* |
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* @param mixed $offset |
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* |
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* @return bool |
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*/ |
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public function offsetExists($offset) |
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{ |
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return array_key_exists($offset, $this->collection); |
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} |
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/** |
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* Retrieves a value at the given offset. |
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* |
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* @link http://php.net/manual/en/arrayaccess.offsetget.php |
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* |
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* @param mixed $offset |
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* |
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* @return mixed |
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*/ |
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public function offsetGet($offset) |
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{ |
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return $this->collection[$offset]; |
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} |
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/** |
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* Sets a value at the given offset. |
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* |
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* This method will throw a `CollectionException` if the offset does not exist. |
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* |
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* @link http://php.net/manual/en/arrayaccess.offsetset.php |
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* |
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* @param mixed $offset |
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* @param mixed $value |
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* |
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* @return void |
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* |
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* @throws \Fusion\Collection\Exceptions\CollectionException |
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*/ |
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public function offsetSet($offset, $value): void |
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{ |
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$this->validator->validateNonNullValue($value); |
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$this->collection[$offset] = $value; |
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} |
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/** |
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* Removes a value at the given offset. |
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* |
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* @link http://php.net/manual/en/arrayaccess.offsetunset.php |
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* |
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* @param mixed $offset |
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* |
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* @return void |
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*/ |
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public function offsetUnset($offset): void |
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{ |
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if ($this->offsetExists($offset)) |
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{ |
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$this->removeAt($offset); |
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} |
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} |
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/** |
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* Returns the current element in the collection. |
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* |
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* @link http://php.net/manual/en/iterator.current.php |
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* |
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* @return mixed |
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*/ |
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public function current() |
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{ |
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return current($this->collection); |
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} |
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/** |
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* Move forward to the next element in the collection. |
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* |
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* @link http://php.net/manual/en/iterator.next.php |
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* |
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* @return void |
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*/ |
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public function next(): void |
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{ |
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next($this->collection); |
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} |
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/** |
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* Return the key of the current element in the collection. |
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* |
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* @link http://php.net/manual/en/iterator.key.php |
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* |
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* @return mixed |
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*/ |
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2 |
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public function key() |
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{ |
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return key($this->collection); |
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} |
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/** |
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* Checks if the current element position is valid. |
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* |
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* @link http://php.net/manual/en/iterator.valid.php |
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* |
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* @return bool |
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*/ |
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public function valid(): bool |
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{ |
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return key($this->collection) !== null; |
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} |
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/** |
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* Rewind the collection's position to the first index. |
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* |
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* @link http://php.net/manual/en/iterator.rewind.php |
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* |
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* @return void |
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*/ |
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2 |
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public function rewind(): void |
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{ |
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reset($this->collection); |
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} |
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/** |
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* Returns of count of the elements in a collection. |
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* |
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* @link http://php.net/manual/en/countable.count.php |
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* |
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* @return int |
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*/ |
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public function count(): int |
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{ |
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return count($this->collection); |
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} |
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} |
FusionPHP /
collection
