php数据访问之增删改查操作数据访问之增删改查操作
增删改查操作小练习，大家练练手吧
一、查看新闻页面一、查看新闻页面—–主页面主页面
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>查看新闻</title>
</head>
<body>
<h1>查看新闻</h1>
<table width="100%" border="1" cellpadding="0" cellspacing="0">
<tr>
<td>id</td>
<td>title</td>
<td>author</td>
<td>source</td>
<td>content</td>
<td>date</td>
<td>update</td>
<td>delete</td>
</tr>
<?php
$db=new MySQLi("localhost","root","","mydb");
!mysqli_connect_error() or die("连接失败！");
$sql="select * from news";
$result=$db->query($sql);
$arr=$result->fetch_all();
foreach ($arr as $v)
{
echo "<tr>
<td>{$v[0]}</td>
<td>{$v[1]}</td>
<td>{$v[2]}</td>
<td>{$v[3]}</td>
<td>{$v[4]}</td>
<td>{$v[5]}</td>
<td><a href='Update.php?newsid={$v[0]}'>update</a></td>
<td><a href='Delete.php?newsid={$v[0]}'>delete</a></td>
</tr>";
}
?>
</table>
<br>
<br />
<div class="xw"><a href="xinwen.php">发布新闻</a></div>
</body>
</html>
二、发布新闻页面二、发布新闻页面—–添加内容添加内容
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>发布新闻</title>
<style>
.xw
{
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