search

Home  >  Article  >  Backend Development  >  php数据访问之增删改查操作_PHP

php数据访问之增删改查操作_PHP

WBOY
WBOYOriginal
2016-05-27 10:34:001131browse

增删改查操作小练习，大家练练手吧

一、查看新闻页面-----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>
<&#63;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>{$v[5]}</td>
  <td><a href='Update.php&#63;newsid={$v[0]}'>update</a></td>
  <td><a href='Delete.php&#63;newsid={$v[0]}'>delete</a></td>
   
  </tr>";
  }
 
&#63;>
</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-----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
{
   
  margin-top:10px;
  margin-left:400px;
  border:thick; 
  }
.a
{
  float:left;
   
  }
 
</style>
 
</head>
 
<body>
<h1><center>发布新闻</center></h1>
 
<form action="AddChu.php" method="post">
<div class="xw">标题：<input type="text" name="title" style="width:400px"></div>
<div class="xw">作者：<input type="text" name="author"></div>
<div class="xw">来源：<input type="text" name="source"></div>
<div class="xw">内容:
<textarea rows="10" cols="80" name="content"></textarea></div>
 
<div class="a"><input type="submit" value="提交" style="margin-left:600px;"></div>
<div class="a"><a href="ChaKan.php"><input type="button" value="查看" style="margin-left:6px;"></a></div>
 
</form>
 
 
</body>
</html>

　　

提交内容后的处理：

<&#63;php
$newsid=$_POST["newsid"];
$title=$_POST["title"];
$author=$_POST["author"];
$source=$_POST["source"];
$content=$_POST["content"];
$time=date("Y-m-d",time());
 
$db=new MySQLi("localhost","root","","mydb");
!mysqli_connect_error() or die("联系失败!");
$sql="insert into news values('{$newsid}','{$title}','{$author}','{$source}','{$content}','{$time}')";
$result=$db->query($sql);
if($result)
{
  header ("location:xinwen.php");
  }
else
{
  echo "添加新闻失败！";
  }

三、删除内容处理

<&#63;php
$newsid=$_GET["newsid"];
$db=new MySQLi("localhost","root","","mydb");
!mysqli_connect_error() or die("连接失败!");
$sql="delete from news where newsid='{$newsid}'";
$result=$db->query($sql);
if($result)
{
  header ("location:ChaKan.php");
  }
else
{
  echo "删除数据失败";
  }
&#63;>
　　

四、修改新闻页面----修改新闻内容后提交查看

<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>修改新闻</title>
<style>
.xw
{
   
  margin-top:10px;
  margin-left:400px;
  border:thick; 
  }
   
.a
{
  float:left;
   
  }
 
</style>
</head>
 
<body>
<h1><center>修改新闻</center></h1>
<&#63;php
$newsid = $_GET["newsid"];
$db = new MySQLi("localhost","root","","mydb");
$sinfo = "select * from news where newsid='{$newsid}'";
$r = $db->query($sinfo);
$arr = $r->fetch_row(); //这个人的所有信息
&#63;>
 
<form action="UpdateChu.php" method="post">
<div class="xw"><input type="hidden" name="newsid" value="<&#63;php echo $arr[0] &#63;>"></div>
<div class="xw">标题：<input type="text" name="title" style="width:400px" value="<&#63;php echo $arr[1] &#63;>"></div>
<div class="xw">作者：<input type="text" name="author" value="<&#63;php echo $arr[2] &#63;>"></div>
<div class="xw">来源：<input type="text" name="source" value="<&#63;php echo $arr[3] &#63;>"></div>
<div class="xw">内容:
<textarea rows="10" cols="80" name="content"><&#63;php echo $arr[4] &#63;></textarea></div>
 
<div class="a"><input type="submit" value="修改" style="margin-left:600px;"></div>
<div class="a"><a href="ChaKan.php"><input type="button" value="查看" style="margin-left:6px;"></a></div>
 
</form>
 
</body>
</html>　　

　　

提交修改内容后进行处理：

<&#63;php
$newsid=$_POST["newsid"];
$title=$_POST["title"];
$author=$_POST["author"];
$source=$_POST["source"];
$content=$_POST["content"];
$time=date("Y-m-d",time());

$db=new MySQLi("localhost","root","","mydb");
!mysqli_connect_error() or die("联系失败!");
$sql="update news set title='{$title}',author='{$author}',source='{$source}',content='{$content}',time='{$time}' where newsid='{$newsid}'";
$result=$db->query($sql);
if($result)
{
  header ("location:Update.php");
  }
else
{
  echo "修改数据失败!";
  }

以上就是本文的全部内容，希望对大家学习php程序设计有所帮助。

Statement：
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Previous article：PHP查询附近的人及其距离的实现方法_PHPNext article：PHP7+Nginx的配置与安装教程详解_PHP

Related articles

See more