Current File : /www/old2/_music/diplomka/diplomka/src/API/libs/dibi/libs/DibiResultIterator.php
<?php
/**
* This file is part of the "dibi" - smart database abstraction layer.
*
* Copyright (c) 2005 David Grudl (http://davidgrudl.com)
*
* For the full copyright and license information, please view
* the file license.txt that was distributed with this source code.
*/
/**
* External result set iterator.
*
* This can be returned by DibiResult::getIterator() method or using foreach
* <code>
* $result = dibi::query('SELECT * FROM table');
* foreach ($result as $row) {
* print_r($row);
* }
* unset($result);
* </code>
*
* @author David Grudl
* @package dibi
*/
class DibiResultIterator implements Iterator, Countable
{
/** @var DibiResult */
private $result;
/** @var int */
private $row;
/** @var int */
private $pointer;
/**
* @param DibiResult
*/
public function __construct(DibiResult $result)
{
$this->result = $result;
}
/**
* Rewinds the iterator to the first element.
* @return void
*/
public function rewind()
{
$this->pointer = 0;
$this->result->seek(0);
$this->row = $this->result->fetch();
}
/**
* Returns the key of the current element.
* @return mixed
*/
public function key()
{
return $this->pointer;
}
/**
* Returns the current element.
* @return mixed
*/
public function current()
{
return $this->row;
}
/**
* Moves forward to next element.
* @return void
*/
public function next()
{
$this->row = $this->result->fetch();
$this->pointer++;
}
/**
* Checks if there is a current element after calls to rewind() or next().
* @return bool
*/
public function valid()
{
return !empty($this->row);
}
/**
* Required by the Countable interface.
* @return int
*/
public function count()
{
return $this->result->getRowCount();
}
}
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