93 lines
1.9 KiB
PHP
93 lines
1.9 KiB
PHP
<?php
|
|
|
|
/**
|
|
* [Discuz!] (C)2001-2099 Comsenz Inc.
|
|
* This is NOT a freeware, use is subject to license terms
|
|
*
|
|
* $Id: lib_tree.php 23684 2011-08-04 02:24:59Z cnteacher $
|
|
*/
|
|
if (!defined('IN_DISCUZ')) {
|
|
exit('Access Denied');
|
|
}
|
|
|
|
class lib_tree {
|
|
|
|
public $data = array();
|
|
public $child = array(-1 => array());
|
|
public $layer = array(-1 => -1);
|
|
public $parent = array();
|
|
public $countid = 0;
|
|
|
|
public function __construct() {
|
|
}
|
|
|
|
public function setNode($id, $parent, $value) {
|
|
|
|
$parent = $parent ? $parent : 0;
|
|
|
|
$this->data[$id] = $value;
|
|
$this->child[$parent][] = $id;
|
|
$this->parent[$id] = $parent;
|
|
|
|
if (!isset($this->layer[$parent])) {
|
|
$this->layer[$id] = 0;
|
|
} else {
|
|
$this->layer[$id] = $this->layer[$parent] + 1;
|
|
}
|
|
}
|
|
|
|
public function getList(&$tree, $root= 0) {
|
|
foreach ($this->child[$root] as $key => $id) {
|
|
$tree[] = $id;
|
|
if ($this->child[$id])
|
|
$this->getList($tree, $id);
|
|
}
|
|
}
|
|
|
|
public function getValue($id) {
|
|
return $this->data[$id];
|
|
}
|
|
|
|
public function reSetLayer($id) {
|
|
if ($this->parent[$id]) {
|
|
$this->layer[$this->countid] = $this->layer[$this->countid] + 1;
|
|
$this->reSetLayer($this->parent[$id]);
|
|
}
|
|
}
|
|
|
|
public function getLayer($id, $space = false) {
|
|
$this->layer[$id] = 0;
|
|
$this->countid = $id;
|
|
$this->reSetLayer($id);
|
|
return $space ? str_repeat($space, $this->layer[$id]) : $this->layer[$id];
|
|
}
|
|
|
|
public function getParent($id) {
|
|
return $this->parent[$id];
|
|
}
|
|
|
|
public function getParents($id) {
|
|
while ($this->parent[$id] != -1) {
|
|
$id = $parent[$this->layer[$id]] = $this->parent[$id];
|
|
}
|
|
|
|
ksort($parent);
|
|
reset($parent);
|
|
|
|
return $parent;
|
|
}
|
|
|
|
public function getChild($id) {
|
|
return $this->child[$id];
|
|
}
|
|
|
|
public function getChilds($id = 0) {
|
|
$child = array();
|
|
$this->getList($child, $id);
|
|
|
|
return $child;
|
|
}
|
|
|
|
}
|
|
|
|
?>
|