能不能把一个数组插进数据库

<?php
include "includes/inc-header.php";
echo "加载一<br>";
?>
<?
echo "加载二<br>";
class wupin{
varchar(15) name;
int(10) num;
}
array w[];
w[0]=new wupin;w[0]->name='西瓜';w[0]->num='3';
w[1]=new wupin;w[1]->name='北瓜';w[1]->num='9';
w[2]=new wupin;w[2]->name='冬瓜';w[2]->num='7';
w[3]=new wupin;w[3]->name='南瓜';w[3]->num='6';
//有一个cc_wupin(userid=001,wupin=?)的数据表。
$UP=$db->query("UPDATE cc_wupin SET wupin='w' WHERE userid='001'");
if($UP){echo "上传成功?@";}else{echo "上传失败@";}
$U=$db->fetch($db->query("SELECT * FROME cc_wupin WHERE userid='001'"));
if($UP){echo "上传成功?";}else{echo "上传失败";}
$wp=$U[wupin];
$ua=$wp[0]->name;$ub=$wp[0]->num;
echo $ua."*".$ub."<br>";
$uc=$wp[1]->name;$ud=$wp[1]->num;
echo $uc."*".$ud."<br>";
?>

<?php
include "includes/inc-header.php";
echo "加载一<br>";
?>
<?
echo "加载二<br>";
class wupin{
varchar(15) name;
int(10) num;
}
array w[];
w[0]=new wupin;w[0]->name='西瓜';w[0]->num='3';
w[1]=new wupin;w[1]->name='北瓜';w[1]->num='9';
w[2]=new wupin;w[2]->name='冬瓜';w[2]->num='7';
w[3]=new wupin;w[3]->name='南瓜';w[3]->num='6';
//有一个cc_wupin(userid=001,wupin=?)的数据表。
$UP=$db->query("UPDATE cc_wupin SET wupin='w' WHERE userid='001'");
if($UP){echo "上传成功?@";}else{echo "上传失败@";}
$U=$db->fetch($db->query("SELECT * FROME cc_wupin WHERE userid='001'"));
if($U){echo "载入成功?";}else{echo "载入失败";}
$wp=$U[wupin];
$ua=$wp[0]->name;$ub=$wp[0]->num;
echo $ua."*".$ub."<br>";
$uc=$wp[1]->name;$ud=$wp[1]->num;
echo $uc."*".$ud."<br>";
?>

我是想这么做来的