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一个php留言板实例详解

WBOY
WBOYOriginal
2016-05-25 16:48:141424browse

留言板可以说是所有php入门者都会练习的一个小不上的WEB应用程序了,下面我把我写的一个php留言板实例分享给各位同学,有需要了解的同学可进入参考参考.

1.在你的PHP的根目录下创建一个名为"msgboard"的文件夹.在"msgboard"下创建一个"msglist.php"文件，数据表结构大家可直接导入。

实例代码如下:

CREATE TABLE `msgboard` ( 
  `id` int(10) NOT NULL AUTO_INCREMENT, 
  `username` varchar(50) CHARACTER SET latin1 NOT NULL, 
  `sex` tinyint(1) NOT NULL DEFAULT '1', 
  `msg` text CHARACTER SET latin1 NOT NULL, 
  PRIMARY KEY (`id`) 
) ENGINE=MyISAM AUTO_INCREMENT=1 DEFAULT CHARSET=utf8;

msglist.php 文件,包括了留言增加,删除,修改

实例代码如下:

<html> 
<head> 
<meta http-equiv="Content-Type" content="text/html;charset=UTF-8"> 
<title>我的留言板</title> 
</head> 
<body> 
<?php
$username = isset($_REQUEST[&#39;username&#39;]) ? $_REQUEST[&#39;username&#39;] : &#39;&#39;; //姓名
$sex = isset($_REQUEST[&#39;sex&#39;]) ? intval($_REQUEST[&#39;sex&#39;]) : 1; //性别
$msg = isset($_REQUEST[&#39;msg&#39;]) ? $_REQUEST[&#39;msg&#39;] : &#39;&#39;; //留言
mysql_connect("127.0.0.1", "root", "lzy"); //链接
mysql_select_db("test"); //选择数据库
if (!emptyempty($username) && !emptyempty($msg)) {
    mysql_query("INSERT INTO msgboard(username,sex,msg) VALUES(&#39;$username&#39;,&#39;$sex&#39;,&#39;$msg&#39;)");
} else {
    echo "输入不正确<br/>";
}
$source = mysql_query("SELECT * FROM msgboard ORDER BY id DESC");
$result = array();
?>
 <table border="1" width="1000"> 
  <tr align="center"> 
   <td width="10%">姓名</td> 
   <td width="10%">性别</td> 
   <td width="80%">留言内容</td> 
  </tr>  
  <tr> 
  <?php
while ($row = mysql_fetch_array($source)) {
    echo &#39;<td>&#39; . $row[&#39;username&#39;] . &#39;</td>&#39;;
    echo &#39;<td>&#39; . ($row[&#39;sex&#39;] == 1 ? &#39;男&#39; : &#39;女&#39;) . &#39;</td>&#39;;
    echo &#39;<td>&#39; . $row[&#39;msg&#39;] . &#39;</td>&#39;;
}
?>
  </tr> 
 </table><p/> 
 
 <form action="msglist.php" method="POST"> 
 <table width="1000" align="left"> 
  <tr> 
   <td width="100%"> 
姓名:<input type="text" name="username" value=""/> 
   </td> 
  </tr> 
  <tr> 
   <td width="100%"> 
性别:男<input type="radio" name="sex" value="1" checked="checked" />    
  女<input type="radio" name="sex" value="0" /> 
   </td> 
  </tr> 
  <tr> 
   <td width="100%"> 
请留言:<br/><textarea name="msg" rows="5" cols="100"></textarea> 
   </td> 
  </tr>  
  <tr> 
   <td width="100%"> 
 <input type="submit" value="提 交" /> 
   </td> 
  </tr>  
 </table> 
 </form> 
</body> 
</html>


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