php+mysql无限级分类的代码
2009-02-18 20:08
543 查看
无限级分类的代码,把文件保存为相应的文件名，放在同一目录下即可看效果
有数据库连接的地方，改成你自己的，我只是做测试，没整成把数据连接的地方提出来放到一个地方
另外文件编辑搞中utf-8要不会有乱码
主要是用的递归
class.php
======================================================
<?php
//无限级分类，数据表结构
/**
* CREATE TABLE `new` (
* `id` int(11) NOT NULL auto_increment,
* `parentid` int(11) NOT NULL,
* `name` varchar(20) NOT NULL,
* PRIMARY KEY (`id`)
)
*/
class nolimit{
function __construct(){
}
/**
* print_list用于生成一个管理菜单,用于添加，删除子类
*
* $parents 父数组
* $subids 所有arr[父id] => 子id
* $name 键与名子的对应arr[id]=$name
*
* $sql= 'select * from new order by name DESC';
* mysql_query('set names gbk');
* $result = mysql_query($sql);
* while($row = mysql_fetch_object($result)){
* $subid[$row->parentid][] = $row->id;
* $name[$row->id] = $row->name;}
* print_list($subid[0],$subid,$name);
*
* 当其用于查找时，代码
* echo "<ul>";
* echo $name[$parentid];
* echo "<a href=/"classadd.php?parentid=$parentid/">[添加]</a>/n";
* echo "<a href=/"classdel.php?arentid=$parentid/">[删除]</a>/n";
* echo "<a href=/"find.php?parentid=$parentid/">[查找]</a></li>/n";
* print_list($subid[$parentid],$subid,$name);
* echo "</ul>";
*/
function print_list($parents,$subids,$name){
$list = '<ul>';
foreach ($parents as $parent){
$list.= "<li>".$name[$parent];
$list.= "<a href=/"classadd.php?parentid=$parent/">[添加]</a>/n";
$list.= "<a href=/"classdel.php?parentid=$parent/">[删除]</a>/n";
$list.= "<a href=/"find.php?parentid=$parent/">[查找]</a></li>/n";
if(array_key_exists($parent,$subids)){
$sublist=$this->print_list($subids[$parent],$subids,$name);
$list.=$sublist;
}
}
$list.= "</ul>/n";
return $list;
}
/**
* print_option用于生成选择列表
*
*$parents 同上
* $subids 同上
* $name 同上
* $indent 用于控制缩进
* print_option($subid[0],$subid,$name);
*/
function print_option($parents,$subids,$name,$indent=0){
foreach($parents as $parent ){
$content.= "<option value='$parent'>".str_repeat(' ',$indent).$name[$parent]."</option>/n";
if(key_exists($parent,$subids)){
$subcontent=$this->print_option($subids[$parent],$subids,$name,$indent+1);
$content.=$subcontent;
}
}
return $content;
}
/**
* getsubid用于得到一个父id下的所有id，主要是用于删除
* $parentid=$_GET['parentid']
* $a=getsubid($parentid,$subid);
*/
function getsubid($parentid,$subids){
$list.=$parentid;
if(array_key_exists($parentid,$subids)){
foreach ($subids[$parentid] as $parent) {
$listsub=", ".$this->getsubid($parent,$subids);
$list.=$listsub;
}
}
return $list;
}
/**
* listurl用于生成导航条
* $sql="select * from new order by name";
* mysql_query('set names gbk');
* $result = mysql_query($sql);
* while($row = mysql_fetch_object($result)){
* $parents[$row->id] = $row->parentid;
* $name[$row->id] = $row->name;}
* $id=$_GET['id'];
* $listurl=listurl($id,$parents,$name);
*/
function listurl($id,$parent,$name){
$tmp="<a href='find.php?parentid=$id'>$name[$id]</>";
while($parent[$id]!=0){
$id=$parent[$id];
$tmp="<a href='find.php?parentid=$id'>$name[$id]</a>"."→".$tmp;
}
return $tmp;
}
}
?>
======================================================
mysql.php
======================================================
<?php
//此文件用于生成数组
$link = mysql_connect('localhost','root','');
mysql_select_db('nolimit',$link);
$sql= 'select * from new order by name DESC';
mysql_query('set names gbk');
$result = mysql_query($sql);
while($row = mysql_fetch_object($result)){
$parentid[$row->id] = $row->parentid;//用于导航
$subid[$row->parentid][] = $row->id; //用于列出，查找
$name[$row->id] = $row->name; //id与名子的对应
}
?>
======================================================
index.php
======================================================
<?php
require_once('mysql.php');
require_once('class.php');
/*
while($row = mysql_fetch_object($result)){
$parentid[$row->id][] = $row->parentid;//用于导航
$subid[$row->parentid][] = $row->id; //用于列出，查找
$name[$row->id] = $row->name; //id与名子的对应
}
*/
$nolimit = new nolimit();
//生成管理菜单
echo $nolimit->print_list($subid[0],$subid,$name);
//生成下拉列表
echo '<select>';
echo $nolimit->print_option($subid[0],$subid,$name);
echo '</select>';
?>
======================================================
classadd.php
======================================================
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
</head>
<body>
<form id="form1" name="form1" method="post" action="classaddcfm.php">
<p>输入子类名称:
<input type="text" name="name">
<input type="hidden" name="parentid" value="<?=$_GET['parentid']?>" />
</p>
<p>
<input type="submit" name="Submit" value="提交" />
</p>
</form>
</body>
</html>
=====================================================
classaddcfm.php
=====================================================
<?php
print_r($_POST);
$link = mysql_connect('localhost','root','');
mysql_select_db('nolimit',$link);
mysql_query('set names gbk');
$name=$_POST['name'];
$parentid=$_POST['parentid'];
$sql="insert new values (NULL,'$parentid','$name')";
$result=mysql_query($sql);
if($result){
alertjs('子类已经添加');
successBack('index.php');
}else{
alertjs('添加失败');
failureBack();
}
function alertjs($str){
echo "<script>alert('$str')</script>";
}
function failureBack(){
echo "<script>history.go(-1)</script>";
exit;
}
function successBack($url){
echo "<meta http-equiv=/"refresh/" content=/"1;URL=$url/">";
exit;
}
?>
==========================================================
classdel.php
==========================================================
<?php
require_once('mysql.php');
/*
while($row = mysql_fetch_object($result)){
$parentid[$row->id][] = $row->parentid;//用于导航
$subid[$row->parentid][] = $row->id; //用于列出，查找
$name[$row->id] = $row->name; //id与名子的对应
}
*/
require_once('class.php');
$nolimit=new nolimit();
$id=$_GET['parentid'];
$in = $nolimit->getsubid($id,$subid);
$sql="delete from new where id in ($in)";
$result=mysql_query($sql);
if($result){
alertjs('delete');
successBack('index.php');
}else{
alertjs('not delete');
failureBack();
}
function alertjs($str){
echo "<script>alert('$str')</script>";
}
function failureBack(){
echo "<script>history.go(-1)</script>";
exit;
}
function successBack($url){
echo "<meta http-equiv=/"refresh/" content=/"1;URL=$url/">";
exit;
}
?>
===========================================================
find.php
===========================================================
<?php
/*
while($row = mysql_fetch_object($result)){
$parentid[$row->id] = $row->parentid;//用于导航
$subid[$row->parentid][] = $row->id; //用于列出，查找
$name[$row->id] = $row->name; //id与名子的对应
}
*/
require_once('mysql.php');
require_once('class.php');
$nolimit=new nolimit();
$id=$_GET['parentid'];
echo $nolimit->listurl($id,$parentid,$name);
echo '<br />';
echo "<ul>";
echo $name[$id];
echo "<a href=/"classadd.php?parentid=$id/">[添加]</a>/n";
echo "<a href=/"classdel.php?parentid=$id/">[删除]</a>/n";
echo "<a href=/"find.php?parentid=$id/">[查找]</a></li>/n";
echo $nolimit->print_list($subid[$id],$subid,$name);
echo "</ul>";
?>
============================================================
sql
============================================================
--
-- 表的结构 `new`
--
CREATE TABLE `new` (
`id` int(11) NOT NULL auto_increment,
`parentid` int(11) NOT NULL,
`name` varchar(20) NOT NULL,
PRIMARY KEY (`id`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8 AUTO_INCREMENT=35 ;
--
-- 导出表中的数据 `new`
--
INSERT INTO `new` (`id`, `parentid`, `name`) VALUES
(1, 0, 'ROOT');
有数据库连接的地方，改成你自己的，我只是做测试，没整成把数据连接的地方提出来放到一个地方
另外文件编辑搞中utf-8要不会有乱码
主要是用的递归
class.php
======================================================
<?php
//无限级分类，数据表结构
/**
* CREATE TABLE `new` (
* `id` int(11) NOT NULL auto_increment,
* `parentid` int(11) NOT NULL,
* `name` varchar(20) NOT NULL,
* PRIMARY KEY (`id`)
)
*/
class nolimit{
function __construct(){
}
/**
* print_list用于生成一个管理菜单,用于添加，删除子类
*
* $parents 父数组
* $subids 所有arr[父id] => 子id
* $name 键与名子的对应arr[id]=$name
*
* $sql= 'select * from new order by name DESC';
* mysql_query('set names gbk');
* $result = mysql_query($sql);
* while($row = mysql_fetch_object($result)){
* $subid[$row->parentid][] = $row->id;
* $name[$row->id] = $row->name;}
* print_list($subid[0],$subid,$name);
*
* 当其用于查找时，代码
* echo "<ul>";
* echo $name[$parentid];
* echo "<a href=/"classadd.php?parentid=$parentid/">[添加]</a>/n";
* echo "<a href=/"classdel.php?arentid=$parentid/">[删除]</a>/n";
* echo "<a href=/"find.php?parentid=$parentid/">[查找]</a></li>/n";
* print_list($subid[$parentid],$subid,$name);
* echo "</ul>";
*/
function print_list($parents,$subids,$name){
$list = '<ul>';
foreach ($parents as $parent){
$list.= "<li>".$name[$parent];
$list.= "<a href=/"classadd.php?parentid=$parent/">[添加]</a>/n";
$list.= "<a href=/"classdel.php?parentid=$parent/">[删除]</a>/n";
$list.= "<a href=/"find.php?parentid=$parent/">[查找]</a></li>/n";
if(array_key_exists($parent,$subids)){
$sublist=$this->print_list($subids[$parent],$subids,$name);
$list.=$sublist;
}
}
$list.= "</ul>/n";
return $list;
}
/**
* print_option用于生成选择列表
*
*$parents 同上
* $subids 同上
* $name 同上
* $indent 用于控制缩进
* print_option($subid[0],$subid,$name);
*/
function print_option($parents,$subids,$name,$indent=0){
foreach($parents as $parent ){
$content.= "<option value='$parent'>".str_repeat(' ',$indent).$name[$parent]."</option>/n";
if(key_exists($parent,$subids)){
$subcontent=$this->print_option($subids[$parent],$subids,$name,$indent+1);
$content.=$subcontent;
}
}
return $content;
}
/**
* getsubid用于得到一个父id下的所有id，主要是用于删除
* $parentid=$_GET['parentid']
* $a=getsubid($parentid,$subid);
*/
function getsubid($parentid,$subids){
$list.=$parentid;
if(array_key_exists($parentid,$subids)){
foreach ($subids[$parentid] as $parent) {
$listsub=", ".$this->getsubid($parent,$subids);
$list.=$listsub;
}
}
return $list;
}
/**
* listurl用于生成导航条
* $sql="select * from new order by name";
* mysql_query('set names gbk');
* $result = mysql_query($sql);
* while($row = mysql_fetch_object($result)){
* $parents[$row->id] = $row->parentid;
* $name[$row->id] = $row->name;}
* $id=$_GET['id'];
* $listurl=listurl($id,$parents,$name);
*/
function listurl($id,$parent,$name){
$tmp="<a href='find.php?parentid=$id'>$name[$id]</>";
while($parent[$id]!=0){
$id=$parent[$id];
$tmp="<a href='find.php?parentid=$id'>$name[$id]</a>"."→".$tmp;
}
return $tmp;
}
}
?>
======================================================
mysql.php
======================================================
<?php
//此文件用于生成数组
$link = mysql_connect('localhost','root','');
mysql_select_db('nolimit',$link);
$sql= 'select * from new order by name DESC';
mysql_query('set names gbk');
$result = mysql_query($sql);
while($row = mysql_fetch_object($result)){
$parentid[$row->id] = $row->parentid;//用于导航
$subid[$row->parentid][] = $row->id; //用于列出，查找
$name[$row->id] = $row->name; //id与名子的对应
}
?>
======================================================
index.php
======================================================
<?php
require_once('mysql.php');
require_once('class.php');
/*
while($row = mysql_fetch_object($result)){
$parentid[$row->id][] = $row->parentid;//用于导航
$subid[$row->parentid][] = $row->id; //用于列出，查找
$name[$row->id] = $row->name; //id与名子的对应
}
*/
$nolimit = new nolimit();
//生成管理菜单
echo $nolimit->print_list($subid[0],$subid,$name);
//生成下拉列表
echo '<select>';
echo $nolimit->print_option($subid[0],$subid,$name);
echo '</select>';
?>
======================================================
classadd.php
======================================================
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
</head>
<body>
<form id="form1" name="form1" method="post" action="classaddcfm.php">
<p>输入子类名称:
<input type="text" name="name">
<input type="hidden" name="parentid" value="<?=$_GET['parentid']?>" />
</p>
<p>
<input type="submit" name="Submit" value="提交" />
</p>
</form>
</body>
</html>
=====================================================
classaddcfm.php
=====================================================
<?php
print_r($_POST);
$link = mysql_connect('localhost','root','');
mysql_select_db('nolimit',$link);
mysql_query('set names gbk');
$name=$_POST['name'];
$parentid=$_POST['parentid'];
$sql="insert new values (NULL,'$parentid','$name')";
$result=mysql_query($sql);
if($result){
alertjs('子类已经添加');
successBack('index.php');
}else{
alertjs('添加失败');
failureBack();
}
function alertjs($str){
echo "<script>alert('$str')</script>";
}
function failureBack(){
echo "<script>history.go(-1)</script>";
exit;
}
function successBack($url){
echo "<meta http-equiv=/"refresh/" content=/"1;URL=$url/">";
exit;
}
?>
==========================================================
classdel.php
==========================================================
<?php
require_once('mysql.php');
/*
while($row = mysql_fetch_object($result)){
$parentid[$row->id][] = $row->parentid;//用于导航
$subid[$row->parentid][] = $row->id; //用于列出，查找
$name[$row->id] = $row->name; //id与名子的对应
}
*/
require_once('class.php');
$nolimit=new nolimit();
$id=$_GET['parentid'];
$in = $nolimit->getsubid($id,$subid);
$sql="delete from new where id in ($in)";
$result=mysql_query($sql);
if($result){
alertjs('delete');
successBack('index.php');
}else{
alertjs('not delete');
failureBack();
}
function alertjs($str){
echo "<script>alert('$str')</script>";
}
function failureBack(){
echo "<script>history.go(-1)</script>";
exit;
}
function successBack($url){
echo "<meta http-equiv=/"refresh/" content=/"1;URL=$url/">";
exit;
}
?>
===========================================================
find.php
===========================================================
<?php
/*
while($row = mysql_fetch_object($result)){
$parentid[$row->id] = $row->parentid;//用于导航
$subid[$row->parentid][] = $row->id; //用于列出，查找
$name[$row->id] = $row->name; //id与名子的对应
}
*/
require_once('mysql.php');
require_once('class.php');
$nolimit=new nolimit();
$id=$_GET['parentid'];
echo $nolimit->listurl($id,$parentid,$name);
echo '<br />';
echo "<ul>";
echo $name[$id];
echo "<a href=/"classadd.php?parentid=$id/">[添加]</a>/n";
echo "<a href=/"classdel.php?parentid=$id/">[删除]</a>/n";
echo "<a href=/"find.php?parentid=$id/">[查找]</a></li>/n";
echo $nolimit->print_list($subid[$id],$subid,$name);
echo "</ul>";
?>
============================================================
sql
============================================================
--
-- 表的结构 `new`
--
CREATE TABLE `new` (
`id` int(11) NOT NULL auto_increment,
`parentid` int(11) NOT NULL,
`name` varchar(20) NOT NULL,
PRIMARY KEY (`id`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8 AUTO_INCREMENT=35 ;
--
-- 导出表中的数据 `new`
--
INSERT INTO `new` (`id`, `parentid`, `name`) VALUES
(1, 0, 'ROOT');
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