首页：
<?php
//连接数据库
$db = new MySQLi('localhost','root','','z_1032');
!mysqli_connect_error() or die('连接失败');
$db->query('set names utf8');
$page = 1;//页码
$pagesize = 2;//每页显示多少页
//接收页码
if(!empty($_GET['page'])){
$page = $_GET['page'];
}
//计算页码
//查出总条数
$sql = "select count(*) from new-news ";
$res = $db->query($sql);
$num = $res->fetch_row();
//计算总条数除以每页的页数，向上取整
$pageNum = ceil($num[0]/$pagesize);
//组织limit条件，分页公式
$limit = " limit ".$pagesize*($page-1).",$pagesize";
//查数据
$sql = "select * from new-news ".$limit;
$res = $db->query($sql);
$arr = array();//定义数组
while($row = $res->fetch_assoc()){//定义一行的信息，关联数组
$arr[] = $row;//追加
}
?>
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>首页</title>
</head>
<body>
<a href="edit.php">发布信息</a>
<table width="80%" border="1" cellpadding="0" cellspacing="0">
<tr>
<th>id</th>
<th>title</th>
<th>author</th>
<th>sourse</th>
<th>content</th>
<th>date</th>
<th>update</th>
<th>detele</th>
</tr>
<?php foreach($arr as $v){ ?>
<tr>
<?php foreach($v as $k => $vv){ ?>
if($k == 'content') continue;
echo "<td>$vv</td>";
<?php } ?>
<td><a href="edit.php?newsid=<?php echo $v['newsid']; ?>">update</a></td>
<td><a href="chuli.php?type=del&newsid=<?php echo $v['newsid']; ?>">delete</a></td>
</tr>
<?php } ?>
<button>上一页</button>
<?php for($i = 1;$i<$pageNum;$i++){
echo "<a href="index.php?$page=$i"<button>$i</button></a> ";
}
?>
<button>下一页</button>
</table>
</body>
</html>
添加处理页：
<?php
//连接数据库
$db = new MySQLi('localhost','root','','z_1032');
!mysqli_connect_error() or die('连接失败');
$db->query('set names utf8');
$id = "";
$attr = array();
if(!empty($_GET['newsid'])){
$id = $_GET['newsid'];
//查数据
$sql = "select * from new-news where newsid = $id";
$res = $db->query($sql);
$attr = $res->fetch_row();
}
?>
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>添加处理页</title>
</head>
<body>
<form action="chuli.php?type=<?php echo $id == '' ? 'add' : 'update' ?>" method="post">
标题： <input type="text" name="title" value="<?php echo $id ? $attr[1] : ''; ?>"> <br>
作者： <input type="text" name="author" value="<?php echo $id ? $attr[2] : ''; ?>"> <br>
来源： <input type="text" name="source" value="<?php echo $id ? $attr[3] : ''; ?>"> <br>
内容： <textarea name="content" id="" cols="30" rows="10">
<?php echo $id ? $attr[4] : ''; ?>
</textarea> <br>
<button>
<?php echo $id ? '修改信息' : '发布信息'; ?>
</button>
<a href="index.php"><button>查看</button></a>
</form>
</body>
</html>
处理页：
<?php
//连接数据库
$db = new MySQLi('localhost','root','','z_1032');
!mysqli_connect_error() or die('连接失败');
$db->query('set names utf8');
$type = $_REQUEST['type'];
switch('$type'){
case 'update':
$id = $_POST['newsid'];
$title = $_POST['title'];
$author = $_POST['author'];
$source = $_POST['source'];
$content = $_POST['content'];
$time = data('Y-m-d H:i:s');
$sql = "update new_news set title = $title,set author = $author,set source = $source,set content = $content where newsid = $id";
$res = $db->query($sql);
if($res){
echo "修改成功";
header("location:index.php");
}else{
echo "修改失败";
header('refresh:3,url=index.php');
}
break;
case 'add':
//接收值
$title = $_POST['title'];
$author = $_POST['author'];
$source = $_POST['source'];
$content = $_POST['content'];
$time = data('Y-m-d H:i:s');
$sql = "insert into new_news(title,author,source,content,time) values('$title','$author','$source','$content','$time')";
break;
case 'del':
$id = $_GET['newsid'];
$sql = "delete from new_news where newsid = $id";
break;
}
$res = $db->query($sql);
if($res){
header("location:index.php");
}else{
echo error;
header('refresh:3,url=index.php');
}