CMapIterator

包	system.collections
继承	class CMapIterator
实现	Iterator, Traversable
可用自	1.0
源码	framework/collections/CMapIterator.php

CMapIterator implements an iterator for CMap.

It allows CMap to return a new iterator for traversing the items in the map.

公共方法

方法	描述	被定义在
__construct()	Constructor.	CMapIterator
current()	Returns the current array element.	CMapIterator
key()	Returns the key of the current array element.	CMapIterator
next()	Moves the internal pointer to the next array element.	CMapIterator
rewind()	Rewinds internal array pointer.	CMapIterator
valid()	Returns whether there is an element at current position.	CMapIterator

__construct() 方法

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

源码： framework/collections/CMapIterator.php#39 (显示)


public function __construct(&$data)
{
    $this->_d=&$data;
    $this->_keys=array_keys($data);
    $this->_key=reset($this->_keys);
}

Constructor.

current() 方法

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

源码： framework/collections/CMapIterator.php#70 (显示)


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

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

key() 方法

public mixed key()
{return}	mixed	the key of the current array element

源码： framework/collections/CMapIterator.php#60 (显示)


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

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

next() 方法

public void next()

源码： framework/collections/CMapIterator.php#79 (显示)


public function next()
{
    $this->_key=next($this->_keys);
}

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

rewind() 方法

public void rewind()

源码： framework/collections/CMapIterator.php#50 (显示)


public function rewind()
{
    $this->_key=reset($this->_keys);
}

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

valid() 方法

public boolean valid()
{return}	boolean

源码： framework/collections/CMapIterator.php#89 (显示)


public function valid()
{
    return $this->_key!==false;
}

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