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<?php |
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namespace PHPHtmlParser\Dom; |
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use ArrayAccess; |
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use ArrayIterator; |
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use Countable; |
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use IteratorAggregate; |
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use PHPHtmlParser\Exceptions\EmptyCollectionException; |
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/** |
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* Class Collection |
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* |
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* @package PHPHtmlParser\Dom |
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*/ |
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class Collection implements IteratorAggregate, ArrayAccess, Countable |
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{ |
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/** |
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* The collection of Nodes. |
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* |
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* @param array |
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*/ |
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protected $collection = []; |
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/** |
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* Attempts to call the method on the first node in |
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* the collection. |
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* |
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* @param string $method |
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* @param array $arguments |
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* @return mixed |
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* @throws EmptyCollectionException |
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*/ |
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public function __call(string $method, array $arguments) |
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{ |
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$node = reset($this->collection); |
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if ($node instanceof AbstractNode) { |
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return call_user_func_array([$node, $method], $arguments); |
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} else { |
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throw new EmptyCollectionException('The collection does not contain any Nodes.'); |
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} |
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} |
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/** |
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* Attempts to apply the magic get to the first node |
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* in the collection. |
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* |
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* @param mixed $key |
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* @return mixed |
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* @throws EmptyCollectionException |
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*/ |
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public function __get($key) |
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{ |
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$node = reset($this->collection); |
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if ($node instanceof AbstractNode) { |
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return $node->$key; |
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} else { |
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throw new EmptyCollectionException('The collection does not contain any Nodes.'); |
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} |
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} |
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/** |
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* Applies the magic string method to the first node in |
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* the collection. |
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* |
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* @return string |
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* @throws EmptyCollectionException |
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*/ |
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public function __toString(): string |
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{ |
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$node = reset($this->collection); |
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if ($node instanceof AbstractNode) { |
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return (string)$node; |
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} else { |
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return ''; |
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} |
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} |
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/** |
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* Returns the count of the collection. |
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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($this->collection); |
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} |
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/** |
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* Returns an iterator for the collection. |
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* |
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* @return ArrayIterator |
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*/ |
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public function getIterator(): ArrayIterator |
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{ |
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return new ArrayIterator($this->collection); |
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} |
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/** |
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* Set an attribute by the given offset |
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* |
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* @param mixed $offset |
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* @param mixed $value |
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*/ |
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public function offsetSet($offset, $value): void |
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{ |
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if (is_null($offset)) { |
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$this->collection[] = $value; |
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} else { |
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$this->collection[$offset] = $value; |
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} |
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} |
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/** |
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* Checks if an offset exists. |
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* |
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* @param mixed $offset |
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* @return bool |
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*/ |
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public function offsetExists($offset): bool |
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{ |
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return isset($this->collection[$offset]); |
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} |
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/** |
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* Unset a collection Node. |
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* |
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* @param mixed $offset |
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*/ |
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public function offsetUnset($offset): void |
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{ |
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unset($this->collection[$offset]); |
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} |
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/** |
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* Gets a node at the given offset, or null |
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* |
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* @param mixed $offset |
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* @return mixed |
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*/ |
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public function offsetGet($offset) |
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{ |
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return isset($this->collection[$offset]) ? $this->collection[$offset] : null; |
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} |
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/** |
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* Returns this collection as an array. |
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* |
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* @return array |
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*/ |
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3 |
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public function toArray(): array |
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{ |
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return $this->collection; |
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} |
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/** |
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157
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* Similar to jQuery "each" method. Calls the callback with each |
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* Node in this collection. |
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* |
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* @param callable $callback |
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*/ |
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3 |
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public function each(callable $callback) |
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{ |
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3 |
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foreach ($this->collection as $key => $value) { |
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$callback($value, $key); |
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} |
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3 |
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} |
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} |
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paquettg /
php-html-parser
