Class.sort.php:
<?php
/**
* @author YangHuan,Fonqing
* @datetime
* @version 1.0.0
* This class base at Yanghuan's PHP Tree
* Modify By Fonqing:
* Memo:
* 1,Add some method functions
*/
class SortClass{
public $data = array();
public $child = array(-1=>array());
public $layer = array(-1=>-1);
public $parent = array();
public $link;
public $table;
/**
* void SortClass($link, $table)
* The constructor of the class
* @param $link resource MySQL link identifier
* @param $table string The name of the category talbe
* @return void
*/
function SortClass($link, $table){
$this->setNode(0, -1, '顶极节点');
$this->link = $link;
$this->table = $table;
$node = array();
$results = mysql_query('select * from '.$this->table.'',$this->link);
while($node = mysql_fetch_assoc($results)){
$this->setNode($node['cid'],$node['pid'],$node['cname']);
}
}
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;
$this->layer[$id] = !isset($this->layer[$parent])? 0 : $this->layer[$parent] + 1;
}
function getList (&$tree, $root= 0){
foreach ($this->child[$root] as $key=>$id){
$tree[] = $id;
if ($this->child[$id]) $this->getList($tree, $id);
}
}
function getValue ($id){return $this->data[$id];}
function getLayer ($id, $space = false){
return $space?str_repeat($space, $this->layer[$id]):$this->layer[$id];
}
function getParent ($id){return $this->parent[$id];}
function getParents ($id){
while ($this->parent[$id] != -1){
$id = $parent[$this->layer[$id]] = $this->parent[$id];
}
ksort($parent);
reset($parent);
return $parent;
}
function getChild ($id){return $this->child[$id];}
function getChilds ($id = 0){
$child = array($id);
$this->getList($child, $id);
return $child;
}
/**
* void addNode($name, $pid)
* Add a new Node to the tree and insert into the database
* @param $name string The node name
* @param $pid integer The parent node of this new node
* @return void
*/
function addNode($name, $pid){
mysql_query("insert into $this->table (`pid`,`cname`) values ('$pid','$name')", $this->link);
}
/**
* void modNode($cid, $newName)
* Modify a node to a new name
* @param $cid integer The `cid` of the node which to modify
* @param $newName string The new name
* @return void
*/
function modNode($cid, $newName){
mysql_query("update $this->table set `cname`='$newName' where `cid` = $cid", $this->link);
}
/**
* void delNode($cid)
* Delete a node and all of its childs
* @param $cid integer The node to delete
* @return void
*/
function delNode($cid){
$allChilds = $this->getChilds($cid);
$sql ='';
if(empty($allChilds)){
$sql = "delete from $this->table where `cid` = $cid";
}else{
$sql = 'delete from '.$this->table.' where `cid` in ('.implode(',',$allChilds).','.$cid.')';
}
mysql_query($sql, $this->link);
}
/**
* void moveNode($cid, $topid)
* Add a new Node to the tree and insert into the database
* @param $cid integer The node id which to move
* @param $topid integer New parent id
* @return void
*/
function moveNode($cid, $topid){
$tos = $this->getChilds($cid);
if(in_array($topid,$tos)) return;//不能移动到其子分类
mysql_query("update $this->table set `pid`=$topid where `cid` = $cid", $this->link);
}
function __destruct(){
unset($this->data,
$this->child,
$this->parent,
$this->layer);
}
}
?>
test.php:
<?php
header("Content-type: text/html; charset=utf-8");
//Import the class
require('Class.sort.php');
//Connect to the MySQL server
$link = mysql_connect('localhost','root','hhw') or die(mysql_error());
mysql_select_db('sortclass',$link);
$tree = new SortClass($link,'`class`');
//Some functions
function back(){
echo '<script language="javascript">window.location.href="test.php?"+new Date().getTime();</script>';
exit;
}
/***************************************/
//用于测试
echo "I was in test.php!";
/***************************************/
//Create select html
function makeSelect($array,$formName){
global $tree;
/***************************************/
//用于测试
echo "I was in makeSelect!";
/***************************************/
$select = '<select name="'.$formName.'">';
foreach ($array as $id){
$select.='<option value="'.$id.'">'.$tree->getLayer($id, '|-').$tree->getValue($id)."</option>";
}
return $select.'</select>';
}
//Controller
$op = !empty($_POST['op']) ? $_POST['op'] : $_GET['op'];
if(!empty($op)){
if($op=='add'){
$tree->addNode($_POST['cname'],$_POST['pid']);
back();
}
if($op=='mod'){
$tree->modNode($_POST['cid'],$_POST['cname']);
back();
}
if($op=='del'){
$tree->delNode($_GET['cid']);
back();
}
if($op=='move'){
$tree->moveNode($_POST['who'],$_POST['to']);
back();
}
}
$category = $tree->getChilds();
?>
index.php:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html>
<head>
<meta http-equiv="Content-type" content="text/html; charset=utf-8" />
<title>无限分类示例</title>
<style type="text/css">
body{font-size:12px;}
ul{list-style:none;}
a{cursor:pointer;}
</style>
<script language="javascript">
function $(e){return document.getElementById(e);}
function mod(cid){
$('cid').value=cid;
$('op').value='mod';
$('name').style.border='2px solid red';
$('name').value = '这里填写新名称';
}
</script>
</head>
<body>
<h3>编辑分类</h3>
<form action="test.php" method="post">
名称:<input type="text" id="name" name="cname" />
添加到:<?= makeSelect($category,'pid') ?>
<br />
<input type="hidden" id="op" name="op" value="add" />
<input type="hidden" id="cid" name="cid" />
<input type="submit" value="Submit" />
</form>
<h3>移动分类</h3>
<form action="test.php" method="post">
<?=makeSelect($category,'who')?>
移动到:
<?=makeSelect($category,'to')?>
<input type="hidden" id="op" name="op" value="move" />
<input type="submit" value="Submit" />
</form>
<ul>
<?php
//Display the tree
foreach ($category as $id){
echo '<li>'.$tree->getLayer($id, '|- ').$tree->getValue($id).' <a href="test.php?op=del&cid='.$id.'">Del</a> <a onclick="mod('.$id.')">Edit</a> </li>';
}
?>
</ul>
</body>
</html>上面是在网上看到的一段无限分类的代码,有一个问题想问下:在index.php中 <?= makeSelect($category,'pid') ?>是什么意思。
并且这段代码我试运行了一下,没有结果,不知道为啥?哪位高人,高高人帮忙指点一下。感激不尽!!!
<?php
/**
* @author YangHuan,Fonqing
* @datetime
* @version 1.0.0
* This class base at Yanghuan's PHP Tree
* Modify By Fonqing:
* Memo:
* 1,Add some method functions
*/
class SortClass{
public $data = array();
public $child = array(-1=>array());
public $layer = array(-1=>-1);
public $parent = array();
public $link;
public $table;
/**
* void SortClass($link, $table)
* The constructor of the class
* @param $link resource MySQL link identifier
* @param $table string The name of the category talbe
* @return void
*/
function SortClass($link, $table){
$this->setNode(0, -1, '顶极节点');
$this->link = $link;
$this->table = $table;
$node = array();
$results = mysql_query('select * from '.$this->table.'',$this->link);
while($node = mysql_fetch_assoc($results)){
$this->setNode($node['cid'],$node['pid'],$node['cname']);
}
}
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;
$this->layer[$id] = !isset($this->layer[$parent])? 0 : $this->layer[$parent] + 1;
}
function getList (&$tree, $root= 0){
foreach ($this->child[$root] as $key=>$id){
$tree[] = $id;
if ($this->child[$id]) $this->getList($tree, $id);
}
}
function getValue ($id){return $this->data[$id];}
function getLayer ($id, $space = false){
return $space?str_repeat($space, $this->layer[$id]):$this->layer[$id];
}
function getParent ($id){return $this->parent[$id];}
function getParents ($id){
while ($this->parent[$id] != -1){
$id = $parent[$this->layer[$id]] = $this->parent[$id];
}
ksort($parent);
reset($parent);
return $parent;
}
function getChild ($id){return $this->child[$id];}
function getChilds ($id = 0){
$child = array($id);
$this->getList($child, $id);
return $child;
}
/**
* void addNode($name, $pid)
* Add a new Node to the tree and insert into the database
* @param $name string The node name
* @param $pid integer The parent node of this new node
* @return void
*/
function addNode($name, $pid){
mysql_query("insert into $this->table (`pid`,`cname`) values ('$pid','$name')", $this->link);
}
/**
* void modNode($cid, $newName)
* Modify a node to a new name
* @param $cid integer The `cid` of the node which to modify
* @param $newName string The new name
* @return void
*/
function modNode($cid, $newName){
mysql_query("update $this->table set `cname`='$newName' where `cid` = $cid", $this->link);
}
/**
* void delNode($cid)
* Delete a node and all of its childs
* @param $cid integer The node to delete
* @return void
*/
function delNode($cid){
$allChilds = $this->getChilds($cid);
$sql ='';
if(empty($allChilds)){
$sql = "delete from $this->table where `cid` = $cid";
}else{
$sql = 'delete from '.$this->table.' where `cid` in ('.implode(',',$allChilds).','.$cid.')';
}
mysql_query($sql, $this->link);
}
/**
* void moveNode($cid, $topid)
* Add a new Node to the tree and insert into the database
* @param $cid integer The node id which to move
* @param $topid integer New parent id
* @return void
*/
function moveNode($cid, $topid){
$tos = $this->getChilds($cid);
if(in_array($topid,$tos)) return;//不能移动到其子分类
mysql_query("update $this->table set `pid`=$topid where `cid` = $cid", $this->link);
}
function __destruct(){
unset($this->data,
$this->child,
$this->parent,
$this->layer);
}
}
?>
test.php:
<?php
header("Content-type: text/html; charset=utf-8");
//Import the class
require('Class.sort.php');
//Connect to the MySQL server
$link = mysql_connect('localhost','root','hhw') or die(mysql_error());
mysql_select_db('sortclass',$link);
$tree = new SortClass($link,'`class`');
//Some functions
function back(){
echo '<script language="javascript">window.location.href="test.php?"+new Date().getTime();</script>';
exit;
}
/***************************************/
//用于测试
echo "I was in test.php!";
/***************************************/
//Create select html
function makeSelect($array,$formName){
global $tree;
/***************************************/
//用于测试
echo "I was in makeSelect!";
/***************************************/
$select = '<select name="'.$formName.'">';
foreach ($array as $id){
$select.='<option value="'.$id.'">'.$tree->getLayer($id, '|-').$tree->getValue($id)."</option>";
}
return $select.'</select>';
}
//Controller
$op = !empty($_POST['op']) ? $_POST['op'] : $_GET['op'];
if(!empty($op)){
if($op=='add'){
$tree->addNode($_POST['cname'],$_POST['pid']);
back();
}
if($op=='mod'){
$tree->modNode($_POST['cid'],$_POST['cname']);
back();
}
if($op=='del'){
$tree->delNode($_GET['cid']);
back();
}
if($op=='move'){
$tree->moveNode($_POST['who'],$_POST['to']);
back();
}
}
$category = $tree->getChilds();
?>
index.php:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html>
<head>
<meta http-equiv="Content-type" content="text/html; charset=utf-8" />
<title>无限分类示例</title>
<style type="text/css">
body{font-size:12px;}
ul{list-style:none;}
a{cursor:pointer;}
</style>
<script language="javascript">
function $(e){return document.getElementById(e);}
function mod(cid){
$('cid').value=cid;
$('op').value='mod';
$('name').style.border='2px solid red';
$('name').value = '这里填写新名称';
}
</script>
</head>
<body>
<h3>编辑分类</h3>
<form action="test.php" method="post">
名称:<input type="text" id="name" name="cname" />
添加到:<?= makeSelect($category,'pid') ?>
<br />
<input type="hidden" id="op" name="op" value="add" />
<input type="hidden" id="cid" name="cid" />
<input type="submit" value="Submit" />
</form>
<h3>移动分类</h3>
<form action="test.php" method="post">
<?=makeSelect($category,'who')?>
移动到:
<?=makeSelect($category,'to')?>
<input type="hidden" id="op" name="op" value="move" />
<input type="submit" value="Submit" />
</form>
<ul>
<?php
//Display the tree
foreach ($category as $id){
echo '<li>'.$tree->getLayer($id, '|- ').$tree->getValue($id).' <a href="test.php?op=del&cid='.$id.'">Del</a> <a onclick="mod('.$id.')">Edit</a> </li>';
}
?>
</ul>
</body>
</html>上面是在网上看到的一段无限分类的代码,有一个问题想问下:在index.php中 <?= makeSelect($category,'pid') ?>是什么意思。
并且这段代码我试运行了一下,没有结果,不知道为啥?哪位高人,高高人帮忙指点一下。感激不尽!!!
pid为该select的id
$category应该为存放类的类名和id的数组。