Loopable_Query.php

<?php

class Loopable_Query extends WP_Query implements Iterator {

	/**
	 * (PHP 5 &gt;= 5.0.0)<br/>
	 * Return the current element
	 * @link http://php.net/manual/en/iterator.current.php
	 * @return mixed Can return any type.
	 */
	public function current() {
		if($this->current_post === -1){
			$this->the_post();
		}
		return $this->post;
	}

	/**
	 * (PHP 5 &gt;= 5.0.0)<br/>
	 * Move forward to next element
	 * @link http://php.net/manual/en/iterator.next.php
	 * @return void Any returned value is ignored.
	 */
	public function next() {
		$this->the_post();
	}

	/**
	 * (PHP 5 &gt;= 5.0.0)<br/>
	 * Return the key of the current element
	 * @link http://php.net/manual/en/iterator.key.php
	 * @return mixed scalar on success, or null on failure.
	 */
	public function key() {
		return $this->current_post >= 0 ? $this->current_post : 0;
	}

	/**
	 * (PHP 5 &gt;= 5.0.0)<br/>
	 * Checks if current position is valid
	 * @link http://php.net/manual/en/iterator.valid.php
	 * @return boolean The return value will be casted to boolean and then evaluated.
	 *       Returns true on success or false on failure.
	 */
	public function valid() {
		return $this->have_posts();
	}

	/**
	 * (PHP 5 &gt;= 5.0.0)<br/>
	 * Rewind the Iterator to the first element
	 * @link http://php.net/manual/en/iterator.rewind.php
	 * @return void Any returned value is ignored.
	 */
	public function rewind() {
		$this->rewind_posts();
	}

}