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<?php
/**
* @author YangHuan
* @datetime
* @version 1.0.0
*/
/**
* Short description.
*
* Detail description
* @author
* @version 1.0
* @copyright
* @access public
*/
class Tree
{
/**
* Description
* @var
* @since 1.0
* @access private
*/
var $data = array();
/**
* Description
* @var
* @since 1.0
* @access private
*/
var $child = array(-1=>array());
/**
* Description
* @var
* @since 1.0
* @access private
*/
var $layer = array(-1=>-1);
/**
* Description
* @var
* @since 1.0
* @access private
*/
var $parent = array();
/**
* Short description.
*
* Detail description
* @param none
* @global none
* @since 1.0
* @access private
* @return void
* @update date time
*/
function Tree ($value)
{
$this->setNode(0, -1, $value);
} // end func
/**
* Short description.
*
* Detail description
* @param none
* @global none
* @since 1.0
* @access private
* @return void
* @update date time
*/
function setNode ($id, $parent, $value)
{
$parent = $parent?$parent:0;
$this->data[$id] = $value;
$this->child[$id] = array();
$this->child[$parent][] = $id;
$this->parent[$id] = $parent;
if (!isset($this->layer[$parent]))
{
$this->layer[$id] = 0;
}
else
{
$this->layer[$id] = $this->layer[$parent] + 1;
}
} // end func
/**
* Short description.
*
* Detail description
* @param none
* @global none
* @since 1.0
* @access private
* @return void
* @update date time
*/
function getList (&$tree, $root= 0)
{
foreach ($this->child[$root] as $key=>$id)
{
$tree[] = $id;
if ($this->child[$id]) $this->getList($tree, $id);
}
} // end func
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