PHP开发之简单投票系统完整管理员功能模块
前面我们分解说明了管理员页面的各个模块功能
修改标题
修改和删除所选项目
添加新项目
本节我们将整合所有功能创建一个admin.php,完整展示所有功能。
<?php
ob_start(); //打开缓冲区
session_start();
header("Content-type:text/html;charset=utf-8");
$link = mysqli_connect('localhost','username','password','test');
mysqli_set_charset($link, "utf8");
if (!$link) {
die("连接失败:".mysqli_connect_error());
}
?>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>PHP+mysql开发的简单投票系统</title>
<style type="text/css">
/*全局样式*/
body { font-family: "宋体"; font-size: 12pt; color: #333333; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px;background-color: #d4d4d4;}
table { font-family: "宋体"; font-size: 9pt; line-height: 20px; color: #333333}
/*全局样式结束*/
</style>
<script language="javascript">
function selectAll()
{
node=window.document.frm.itm;
for(i=0;i<node.length;i++)
{
node[i].checked=true;
}
}
function cancelAll()
{
node=frm.itm;
for(i=0;i<node.length;i++)
{
node[i].checked=false;
}
}
function del()
{
node=frm.itm;
id="";
for(i=0;i<node.length;i++)
{
if(node[i].checked)
{
if(id=="")
{
id=node[i].value
}
else
{
id=id+","+node[i].value
}
}
}
if(id=="")
{
alert("您没有选择删除项");
}
else
{
location.href="?type=del&id="+id
}
}
</script>
</head>
<body>
<?php
if(isset($_GET['tj']) == 'out'){
session_destroy();//删除当前用户对应的session文件以及释放session
echo "<script language=javascript>alert('退出成功！');window.location='index.php'</script>";
}
?>
<?php
if(isset($_POST['Submit10'])){
if($_POST['pwd']=='admin'){
$_SESSION['pwd']=2;
echo "<script language=javascript>alert('登陆成功！');window.location='admin.php'</script>";
}else{
echo "<script language=javascript>alert('登陆失败,请检查您的密码！');window.location='admin.php'</script>";
}
}
?>
<?php if($_SESSION['pwd']<>2){ ?>
<form action="" method="post">
<table width="365" border="0" align="center" cellpadding="5" cellspacing="1" bgcolor="#C2C2C2">
<tr>
<td height="30" align="right" bgcolor="#FFFFFF"><label>输入密码：</label></td>
<td align="left" bgcolor="#FFFFFF"><input name="pwd" type="text" id="pwd" /></td>
</tr>
<tr>
<td height="30" colspan="2" align="center" bgcolor="#FFFFFF"><label>
<input name="Submit10" type="submit" id="Submit10" value="登陆" />
</label>
<label>
<input type="reset" name="Submit5" value="重置" />
</label></td>
</tr>
<tr>
<td height="30" colspan="2" align="center" bgcolor="#FFFFFF">
软件版本：<script type="text/javascript" src="http://www.04ie.com/net/phpvote1_1.js"></script></td>
</tr>
</table>
</form>
<?php }else{ ?>
<?php
if(isset($_POST["Submit"]))
{
$title=$_POST["title"];
$sql="update votetitle set votetitle='$title'";
mysqli_query($link,$sql);
?>
<script language="javascript">
alert("修改成功");
</script>
<?php
}
if(isset($_POST["Submit2"]))
{
$newitem=$_POST["newitem"];
$sql="insert into vote (titleid,item,count) values (1,'$newitem',1)";
mysqli_query($link,$sql);
}
?>
<form id="frm" name="frm" method="post" action="" style="margin-bottom:3px;">
<table width="365" border="0" align="center" cellpadding="5" cellspacing="1" bgcolor="#C2C2C2">
<tr>
<td colspan="4" bgcolor="#FFFFFF"><label>
<?php
$sql="select * from votetitle";
$rs=mysqli_query($link,$sql);
$rows=mysqli_fetch_assoc($rs);
?>
<input name="title" type="text" id="title" size="35" value="<?php echo $rows["votetitle"]?>" />
</label></td>
<td width="68" align="center" bgcolor="#FFFFFF"><label>
<input type="submit" name="Submit" value="修改标题" />
</label></td>
</tr>
<tr>
<th width="30" bgcolor="#FFFFFF">编号</th>
<th width="45" bgcolor="#FFFFFF">项目</th>
<th width="52" bgcolor="#FFFFFF">票数</th>
<th width="50" align="center" bgcolor="#FFFFFF">修改</th>
<th align="center" bgcolor="#FFFFFF">删除</th>
</tr>
<?php
$sql="select * from vote order by count desc";
$rs=mysqli_query($link,$sql);
while($rows=mysqli_fetch_assoc($rs))
{
?>
<tr>
<td align="center" bgcolor="#FFFFFF"><input type="checkbox" name="itm" value="<?php echo $rows["id"]?>" /><?php echo $rows["id"]?></td>
<td align="center" bgcolor="#FFFFFF"><?php echo $rows["item"]?></td>
<td align="center" bgcolor="#FFFFFF"><?php echo $rows["count"]?></td>
<td align="center" bgcolor="#FFFFFF"><input type="button" value="修改" onclick="location.href='?type=modify&id=<?php echo $rows["id"]?>'" /></td>
<td align="center" bgcolor="#FFFFFF"><input type="button" value="删除" onclick="location.href='?type=del&id=<?php echo $rows["id"]?>'" /></td>
</tr>
<?php
}
?>
<tr>
<td colspan="5" align="center" bgcolor="#FFFFFF">
<input type="button" value="选择全部" onclick="selectAll()" />
<input type="button" value="取消全部" onclick="cancelAll()" />
<input type="button" value="删除所选" onclick="del()" /> </td>
</tr>
<tr>
<td colspan="3" bgcolor="#FFFFFF"><label>
<input name="newitem" type="text" id="newitem" />
</label></td>
<td colspan="2" bgcolor="#FFFFFF"><label>
<input type="submit" name="Submit2" value="添加新项" />
</label>
<a href="?tj=out">退出管理</a></td>
</tr>
</table>
</form>
<?php
$type = isset($_GET["type"])?$_GET["type"]:"";
if($type =="modify"){
$id=$_GET["id"];
if(isset($_POST["Submit3"]))
{
$item=$_POST["itm"];
$count=$_POST["count"];
$sql="update vote set item='$item',count=$count where id=$id";
mysqli_query($link,$sql);
echo "<script language=javascript>alert('修改成功！');window.location='admin.php'</script>";
}
$sql="select * from vote where id=$id";
$rs=mysqli_query($link,$sql);
$rows=mysqli_fetch_assoc($rs);
?>
<form id="form1" name="form1" method="post" action="" style="margin-top:2px;">
<table width="365" border="0" align="center" cellpadding="5" cellspacing="1" bgcolor="#C2C2C2">
<tr>
<th colspan="2" bgcolor="#FFFFFF">修改投票项目</th>
</tr>
<tr>
<td align="center" bgcolor="#FFFFFF">名称:</td>
<td bgcolor="#FFFFFF"><label>
<input name="itm" type="text" id="itm" value="<?php echo $rows["item"]?>" />
</label></td>
</tr>
<tr>
<td align="center" bgcolor="#FFFFFF">票数：</td>
<td bgcolor="#FFFFFF"><label>
<input name="count" type="text" id="count" value="<?php echo $rows["count"]?>" />
</label></td>
</tr>
<tr>
<td colspan="2" align="center" bgcolor="#FFFFFF"><label>
<input type="submit" name="Submit3" value="修改" />
<input type="reset" name="Submit" value="重置" />
</label></td>
</tr>
</table>
</form>
<?php
}
?>
<?php
$type = isset($_GET["type"])?$_GET["type"]:"";
if($type =="del"){
$id=$_GET["id"];
$sql="delete from vote where id in ($id)";
mysqli_query($link,$sql);
echo "<script language=javascript>alert('删除成功！');window.location='admin.php'</script>";
}
?>
<?php } ?>
</body>
</html>
