php怎么在mysql创建留言板步骤

2025-02-06 04:42:31
推荐回答(1个)
回答1:

  工具:
  Dreamweaver
  php、mysql服务器
  步骤/方法
  首先是确定自己的留言板需求.例如:名字,邮件及留言内容.
  一. 建立一个数据库guestbook。
  CREATE TABLE IF NOT EXISTS `content` (
  `id` int(11) NOT NULL auto_increment,
  `name` varchar(20) NOT NULL,
  `email` varchar(50) NOT NULL,
  `content` varchar(200) NOT NULL,
  PRIMARY KEY (`id`))
  ENGINE=MyISAM DEFAULT CHARSET=utf8 AUTO_INCREMENT=3;
  二. 新建config.php
  < ? php
  $q = mysql_connect("服务器","数据库用户","数据库密码");
  if(!$q)
  {
  die('Could not connect: ' . mysql_error());
  }
  mysql_query("set names utf8"); //以utf8读取数据
  mysql_select_db("guestbook",$q); //数据库
  ?>
  三. 新建index.php
  < ?php
  include("config.php"); //引入数据库连接文件
  $sql = "select * from content"; //搜索数据表content
  $resule = mysql_query($sql,$q);
  ?>
  < html>
  < meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
  < body>
  < table width="678" align="center">
  < tr>
  < td colspan="2">< h1>留言本< /h1>< /td>
  < /tr>
  < tr>
  < td width="586">< a href="index.php">首页< /a> | < a href="liuyan.php">留言< /a>< /td>
  < /tr>
  < /table>
  < p>
  < ?
  while($row=mysql_fetch_array($resule))
  {
  ?>
  < /p>
  < table width="678" border="1" align="center" cellpadding="1" cellspacing="1">
  < tr>
  < td width="178">Name:< ? echo $row[1] ?>< /td>
  < td width="223">Email:< ? echo $row[2] ?>< /td>
  < /tr>
  < tr>
  < td colspan="4">< ? echo $row[3] ?>< /td>
  < /tr>
  < tr>
  < /table>
  < ?
  }
  ?>
  < /body>
  < /html>
  四. 新建liuyan.php
  < html>
  < body>
  < meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
  < table width="678" align="center">
  < tr>
  < td colspan="2">< h1>留言本< /h1>< /td>
  < /tr>
  < tr>
  < td width="586">< a href="index.php">首页< /a> | < a href="liuyan.php">留言< /a>< /td>
  < /tr>
  < /table>
  < table align="center" width="678">
  < tr>
  < td>
  < form name="form1" method="post" action="post.php">
  < p>
  Name:
  < input name="name" type="text" id="name">
  < /p>
  < p>Email:< input type="test" name="email" id="email">< /p>
  < p>
  留言:
  < /p>
  < p>
  < textarea name="content" id="content" cols="45" rows="5">< /textarea>
  < /p>
  < p>
  < input type="submit" name="button" id="button" value="提交">
  < input type="reset" name="button2" id="button2" value="重置">
  < /p>
  < /form>
  < /td>
  < /tr>
  < /table>
  < /body>
  < /html>
  五. 新建post.php
  < ?php
  header("content-Type: text/html; charset=utf-8");
  include("config.php");
  $name= $_POST['name'];
  $email= $_POST['email'];
  $patch = $_POST['content'];
  $content = str_replace("
  ","< br />",$patch);
  $sql = "insert into content (name,email,content) values ('$name','$email','$content')";
  mysql_query($sql);
  echo "< script>alert('提交成功!返回首页。');location.href='index.php';< /script>";
  ?>
  这样已经成功的写出一个留言板了。
  第二部分
  此次将在上面版本上加多管理,回复等功能。
  首先在sql中字节。
  ALTER TABLE `content` ADD `reply` VARCHAR( 200 ) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL AFTER `content`
  一. 新建login.php
  < html xmlns="http://www.w3.org/1999/xhtml">
  < meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
  < title>无标题文档< /title>
  < /head>
  < body>< table width="678" align="center">
  < tr>
  < td colspan="2">< h1>留言本< /h1>< /td>
  < /tr>
  < tr>
  < td width="586">< a href="index.php">首页< /a> | < a href="liuyan.php">留言< /a>< /td>
  < /tr>
  < /table>
  < table align="center" width="678">
  < tr>
  < td align="center">
  < form name="form1" method="post" action="login2.php">
  < label for="textfield">< /label>
  < p> < /p>
  < p>帐号:
  < input type="text" name="name" id="name">
  < /p>
  < p>密码:
  < input type="password" name="pw" id="pw">
  < /p>
  < p>
  < input type="submit" name="button" id="button" value="提交">
  < input type="reset" name="button2" id="button2" value="重置">
  < /p>
  < /form>< /td>
  < /tr>
  < /table>
  < /body>
  < /html>
  二.login2.php
  < ?
  session_start();
  header("content-Type: text/html; charset=utf-8");
  $name = $_POST['name'];
  $pw = $_POST['pw'];
  if($name == "admin" && $pw == "admin"){
  $_SESSION["adminname"] = $name;
  echo "< script>alert('登录完成,返回首页!');location.href='index.php';< /script>";
  }else{
  echo "< script>alert('错误!');location.href='login.php';< /script>";
  }
  ?>
  三. 在原有的index.php上添加
  < ?php
  session_start();
  include("config.php");
  $sql = "select * from content";
  $resule = mysql_query($sql,$q);
  ?>
  < html>
  < meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
  < body>
  < table width="678" align="center">
  < tr>
  < td colspan="2">< h1>留言本< /h1>< /td>
  < /tr>
  < tr>
  < td width="586">< a href="index.php">首页< /a> | < a href="liuyan.php">留言< /a>< /td>
  < td width="80">
  // 新增管理员登录
  < ?php
  if (isset($_SESSION['adminname']) && $_SESSION["adminname"] == "admin"){
  echo "< a href='logout.php'>登出< /a>";
  }else{
  echo "< a href='login.php'>管理员登录< /a>";
  }
  ?>
  < /td>
  < /tr>
  < /table>
  < p>
  < ?
  while($row=mysql_fetch_array($resule))
  {
  ?>
  < /p>
  < table width="678" border="1" align="center" cellpadding="1" cellspacing="1">
  < tr>
  < td width="178">Name:< ? echo $row[1] ?>< /td>
  < td width="223">Email:< ? echo $row[2] ?>< /td>
  < td width="100">
  < ?php
  if(isset($_SESSION['adminname']) && $_SESSION["adminname"] == "admin"){
  echo "< a href='huifu.php?id=" . $row[0] . "'>回复< /a>";
  echo " | " . "< a href='delete.php?id=" . $row[0] . "'>删除< /a>";
  } else {
  echo "";
  }
  ?>
  < /td>
  < /tr>
  < tr>
  < td colspan="4">< ? echo $row[3] ?>< /td>
  < /tr>
  < tr>
  < td colspan="4">< ?
  if($row[4] == ""){
  ?>
  < ? echo "暂无回复。";?>
  < ? }else {echo "管理员回复:". $row[4]; } ?>< /td>
  < /tr>
  < /table>
  < ?
  }
  ?>
  < /body>
  < /html>
  四. 新建huifu.php
  < ?php
  include("config.php");
  $sql = "select * from content where id=".$_GET["id"];
  $resule = mysql_query($sql,$q);
  SetCookie("id",$_GET["id"]);
  session_start();
  header("content-Type: text/html; charset=utf-8");
  if(empty($_SESSION["adminname"])){
  exit("< script language='javascript'>alert('您尚未登录后台,或登录已超时,请重新登录!');window.location.href='login.php';< /script>");
  }
  ?>
  < !DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
  < html xmlns="http://www.w3.org/1999/xhtml">
  < head>
  < meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
  < title>无标题文档< /title>
  < /head>
  < body>
  < table width="678" align="center">
  < tr>
  < td colspan="2">< h1>留言本< /h1>< /td>
  < /tr>
  < tr>
  < td width="586">< a href="index.php">首页< /a> | < a href="liuyan.php">留言< /a>< /td>
  < /tr>
  < /table>
  < table align="center" width="678">
  < tr>
  < td>
  < form name="reply" method="post" action="reply.php" >
  < p>回复:
  < ?
  while($row=mysql_fetch_array($resule))
  {
  echo $row[3];
  }
  ?>
  < /p>
  < p>
  < textarea name="reply" id="reply" cols="45" rows="5">< /textarea>
  < /p>
  < p>
  < input type="submit" name="button" id="button" value="回复" />
  < input type="reset" name="button2" id="button2" value="重置" />
  < /p>
  < /form>
  < /td>
  < /tr>
  < /table>
  < /body>
  < /html>
  五. reply.php 回复留言提交页面.
  < ?
  include("config.php");
  $id = $_COOKIE["id"];
  $sql = "select * from content";
  header("content-Type: text/html; charset=utf-8");
  $patch = $_POST["reply"];
  $reply = str_replace("
  ","< br />",$patch);
  $resule = mysql_query("UPDATE `2`.`content` SET `reply` = '$reply' WHERE `content`.`id` ="."$id");
  echo "< script>alert('回复成功!');location.href='index.php';< /script>";
  ?>
  这样就可以建立出一个简单的管理.管理帐号都是admin 因为只是判别输入的是不是admin 是的话就把值输入进session中.

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