CStackIterator

Package	system.collections
Inheritance	class CStackIterator
Implements	Iterator, Traversable
Since	1.0
Version	$Id: CStackIterator.php 2799 2011-01-01 19:31:13Z qiang.xue $
Source Code	framework/collections/CStackIterator.php

CStackIterator implements an interator for CStack.

It allows CStack to return a new iterator for traversing the items in the stack.

Public Methods

Method	Description	Defined By
__construct()	Constructor.	CStackIterator
current()	Returns the current array item.	CStackIterator
key()	Returns the key of the current array item.	CStackIterator
next()	Moves the internal pointer to the next array item.	CStackIterator
rewind()	Rewinds internal array pointer.	CStackIterator
valid()	Returns whether there is an item at current position.	CStackIterator

__construct() method

public void __construct(array &$data)
$data	array	the data to be iterated through

Source Code: framework/collections/CStackIterator.php#40 (show)


public function __construct(&$data)
{
    $this->_d=&$data;
    $this->_i=0;
    $this->_c=count($this->_d);
}

Constructor.

current() method

public mixed current()
{return}	mixed	the current array item

Source Code: framework/collections/CStackIterator.php#71 (show)


public function current()
{
    return $this->_d[$this->_i];
}

Returns the current array item. This method is required by the interface Iterator.

key() method

public integer key()
{return}	integer	the key of the current array item

Source Code: framework/collections/CStackIterator.php#61 (show)


public function key()
{
    return $this->_i;
}

Returns the key of the current array item. This method is required by the interface Iterator.

next() method

public void next()

Source Code: framework/collections/CStackIterator.php#80 (show)


public function next()
{
    $this->_i++;
}

Moves the internal pointer to the next array item. This method is required by the interface Iterator.

rewind() method

public void rewind()

Source Code: framework/collections/CStackIterator.php#51 (show)


public function rewind()
{
    $this->_i=0;
}

Rewinds internal array pointer. This method is required by the interface Iterator.

valid() method

public boolean valid()
{return}	boolean

Source Code: framework/collections/CStackIterator.php#90 (show)


public function valid()
{
    return $this->_i<$this->_c;
}

Returns whether there is an item at current position. This method is required by the interface Iterator.