尝试使用php从数据库创建树列表。。怎么了
我只是尝试使用php从数据库创建树列表。。怎么了,php,list,tree,Php,List,Tree,我只是 secondsecondsecond 这是我的数据 现在,问题已经解决了!!!!!!! 这是我的解决方案: function getListaa($id){ $sql = "select * from programs where itemRoot = '".$id."'"; $strss = ""; $dao1 = new DataAccess("localhost", "root",
second secondsecond
这是我的数据
现在,问题已经解决了!!!!!!! 这是我的解决方案:
function getListaa($id){
$sql = "select * from programs where itemRoot = '".$id."'";
$strss = "";
$dao1 = new DataAccess("localhost", "root", "", "ecommercedb");
$dao1->fetch($sql);
while(($rows = $dao1->getNextRow()) )
{
if (($dao1->executeNum("select * from programs where itemRoot = '".$rows['itemId']."'")) > 0)
{
if($id != 0) $strss .= "".$rows['itemName'];
$strss .= "";
$strss .= $this->getListaa($rows['itemId']);
$strss .= "";
if($id != 0) $strss .= " ";
}
else
{
$strss .= "".$rows['itemName']." ";
}
}
unset($dao1);
return $strss;
}
函数getListaa($id){
$sql=“从itemRoot=”“$id.”的程序中选择*;
$strss=“”;
$dao1=新的数据访问(“本地主机”、“根目录”、“电子商务数据库”);
$dao1->fetch($sql);
而(($rows=$dao1->getNextRow())
{
如果($dao1->executeNum(“从程序中选择*,其中itemRoot='”。$rows['itemId'].'”))>0)
{
如果($id!=0)$strss.=“”$rows['itemName'];
$strss.=”;
$strss.=$this->getListaa($rows['itemId']);
$strss.=”;
如果($id!=0)$strss.=“ ”;
}
其他的
{
$strss.=“”$rows['itemName']。“ ”;
}
}
未结算(1美元);
返回$strs;
}
--
-- Table structure for table `programs`
--
CREATE TABLE IF NOT EXISTS `programs` (
`itemId` int(11) NOT NULL AUTO_INCREMENT,
`itemName` varchar(250) NOT NULL,
`itemPrice` float DEFAULT NULL,
`itemDesc` text,
`itemRoot` int(11) NOT NULL,
`itemDateTime` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
PRIMARY KEY (`itemId`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 AUTO_INCREMENT=8 ;
--
-- Dumping data for table `programs`
--
INSERT INTO `programs` (`itemId`, `itemName`, `itemPrice`, `itemDesc`, `itemRoot`, `itemDateTime`) VALUES
(1, 'root', NULL, NULL, 0, '2013-12-15 13:22:03'),
(3, 'second', NULL, NULL, 1, '2013-12-15 13:22:13'),
(4, 'frist', NULL, NULL, 1, '2013-12-15 13:22:36'),
(5, 'secondfrist', NULL, NULL, 3, '2013-12-15 13:23:46'),
(6, 'secondsecond', NULL, NULL, 3, '2013-12-15 13:23:46'),
(7, 'fristfrist', NULL, NULL, 4, '2013-12-15 13:24:02');
+--------------------+--------------+---------------+------------+----------+
| itemId | ItemName | itemPrice | itemDesc | itemRoot |
+--------------------+--------------+---------------+------------+----------+
| 1 | root | NULL | NULL | 0 |
| 3 | second | NULL | NULL | 1 |
| 4 | frist | NULL | NULL | 1 |
| 5 | secondfrist | NULL | NULL | 3 |
| 6 | secondsecond | NULL | NULL | 3 |
| 7 | fristfrist | NULL | NULL | 4 |
+--------------------+--------------+---------------+------------+----------+
conn = mysql_pconnect($host, $user, $pass);
mysql_select_db($dbname, $this->conn);
}
/**
* Execute a query like insert, delete or update
* @param $sql string
* @return void
*/
function execute($sql) {
return mysql_query($sql,$this->conn);
}
function executeNum($sql) {
return mysql_num_rows(mysql_query($sql,$this->conn));
}
/**
* Fetches a query resources and stores it in a local member
* @param $sql string
* @return void
*/
function fetch($sql) {
$this->result = mysql_query($sql,$this->conn);
}
/*function getRowsNum(){
return $this->result->num_rows;
}*/
/**
* Returns an associative array of a query row
* @return Array
*/
function getNextRow() {
if( $row = mysql_fetch_array($this->result) )
return $row;
else
return null;
}
}
?>
function getListaa($id){
$sql = "select * from programs where itemRoot = '".$id."'";
$strss = "";
$dao1 = new DataAccess("localhost", "root", "", "ecommercedb");
$dao1->fetch($sql);
while(($rows = $dao1->getNextRow()) )
{
if (($dao1->executeNum("select * from programs where itemRoot = '".$rows['itemId']."'")) > 0)
{
if($id != 0) $strss .= "".$rows['itemName'];
$strss .= "";
$strss .= $this->getListaa($rows['itemId']);
$strss .= "";
if($id != 0) $strss .= " ";
}
else
{
$strss .= "".$rows['itemName']." ";
}
}
unset($dao1);
return $strss;
}