<?php
/**
* This file contains the DomNodeIterable class.
*
* PHP Version 5.3
*
* @category DOM
* @package Dom
* @author Gonzalo Chumillas <[email protected]>
* @license https://raw.github.com/soloproyectos/core/master/LICENSE BSD 2-Clause License
* @link https://github.com/soloproyectos/core
*/
namespace com\soloproyectos\common\dom;
use \Iterator;
use \Countable;
/**
* DomNodeIterable class.
*
* @category DOM
* @package Dom
* @author Gonzalo Chumillas <[email protected]>
* @license https://raw.github.com/soloproyectos/core/master/LICENSE BSD 2-Clause License
* @link https://github.com/soloproyectos/core
*/
class DomNodeIterable implements Iterator, Countable
{
/**
* Internal DOM elements.
* @var array of DOMElement
*/
protected $elements = array();
/**
* Gets the current node.
*
* This function implements Iterator::current.
*
* @return DomNode|false
*/
public function current()
{
$elem = current($this->elements);
return $elem !== false? DomNode::createFromElement($elem): false;
}
/**
* Gets the next node.
*
* This function implements Iterator::next.
*
* @return DomNode|false
*/
public function next()
{
$elem = next($this->elements);
return $elem !== false? DomNode::createFromElement($elem): false;
}
/**
* Gets the key of the current node.
*
* This function implements Iterator::key.
*
* @return DOMElement|null
*/
public function key()
{
return key($this->elements);
}
/**
* Sets the internal pointer to the first element.
*
* This function implements Iterator::rewind.
*
* @return void
*/
public function rewind()
{
reset($this->elements);
}
/**
* Is the current node valid?
*
* This function implements Iterator::valid.
*
* @return boolean
*/
public function valid()
{
return (key($this->elements) !== null);
}
/**
* Gets the number of nodes.
*
* This function implements Countable::count.
*
* @return integer
*/
public function count()
{
return count($this->elements);
}
}
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