复制代码 代码如下:

<?php

$conn=mysql_connect("localhost","root","myoa888");

mysql_select_db("lost63",$conn) or die("select db error");

$sql[]="Create TABLE `lost63`.`dd_book_class` (

`id` INT NOT NULL AUTO_INCREMENT PRIMARY KEY ,

`classname` VARCHAR( 50 ) NOT NULL ,

`classid` INT NOT NULL

)";

$sql[]="insert `dd_book_class` (classname,classid) values ('小说',0)";

$sql[]="insert `dd_book_class` (classname,classid) values ('文艺',0)";

$sql[]="insert `dd_book_class` (classname,classid) values ('青春',0)";

$sql[]="insert `dd_book_class` (classname,classid) values ('励志/成功',0)";

$sql[]="insert `dd_book_class` (classname,classid) values ('少儿',0)";

$sql[]="insert `dd_book_class` (classname,classid) values ('悬疑',1)";

$sql[]="insert `dd_book_class` (classname,classid) values ('言情',1)";

$sql[]="insert `dd_book_class` (classname,classid) values ('职场',1)";

$sql[]="insert `dd_book_class` (classname,classid) values ('文学',2)";

$sql[]="insert `dd_book_class` (classname,classid) values ('科普',5)";

//print_r($sql);

/* -- insert test data -- */

foreach($sql as $value){

mysql_query($value) or die("insert data error");

}

$class_arr=array();

$recordset=mysql_query("select * from `dd_book_class`");

while($row=mysql_fetch_array($recordset)){

$class_arr[]=array($row['id'],$row['classname'],$row['classid']);

}

function classtree($n,$id){

global $class_arr;

$n = str_pad('',$n,'-',STR_PAD_RIGHT);

$n = str_replace("-"," ",$n);

for($i=0;$i<count($class_arr);$i++){

if($class_arr[$i][2]==$id){

echo $n.'┠<a href="?class='.$class_arr[$i][0].'">'.$class_arr[$i]

[1].'</a><br>';

classtree($n+1,$class_arr[$i][0]);

}

}

}

classtree(0,0);

?>