Home > php教程 > php手册 > PHP 数据库树的遍历方法

PHP 数据库树的遍历方法

WBOY
Release: 2016-06-13 12:25:17
Original
996 people have browsed it

代码如下:

复制代码 代码如下:


session_start();
define ('P_S', PATH_SEPARATOR);
define ('ROOT', "./");
set_include_path(ROOT .P_S .'Zend' .P_S .ROOT.get_include_path());
//加载ZEND 框架
require_once ROOT.'Zend/Loader.php';
require_once 'usercheck.php';//加载访问权限
Zend_Loader::loadFile('function.class.php', $dirs='class/', $once=false);//加载函数
Zend_Loader::loadClass('Zend_Db');//加载数据库类
Zend_Loader::loadClass('Zend_Config_Ini');//加载配置类
$config = new Zend_Config_Ini('config.php', 'general');//创建配置对象
$db = Zend_Db::factory($config->db->adapter,$config->db->config->toArray());//创建数据库对象
$select=$db->select();
$select->from('ResClass',array('lsh','name'));
$select->where('steps = 1');
$rs=$db->fetchAll($select);
foreach ($rs as $res){
echo '    '.$res['lsh'].$res['name']."
";
Visit($res['lsh'],1);
}
function Visit($nodeid,$stept){
global $db;
$recordset = "SELECT lsh,name FROM ResClass WHERE parent=".$nodeid; //搜索nodeid的所有下层节点
$rs=$db->fetchAll($recordset);
foreach($rs as $rss){
if(!$rss)
return; //已经是叶子节点,直接返回
else{
for ($i=0;$iecho " ";
}
echo '    '.$rss['lsh'].$rss['name']."
";
Visit($rss['lsh'],$stept+1);
}
}
}
?>

source:php.cn
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Popular Recommendations
Popular Tutorials
More>
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template