PHP+MySQL實(shí)現(xiàn)簡(jiǎn)單留言板功能

2024-05-04 23:06:31

字體：大中小

來(lái)源：轉(zhuǎn)載

供稿：網(wǎng)友

留言板基于功能就是數(shù)據(jù)添加管理修改及數(shù)據(jù)刪除功能了,下面我們就來(lái)看一個(gè)PHP+MySQL實(shí)現(xiàn)簡(jiǎn)單留言板例子,希望文章能夠幫助到大家.

通過(guò)php+mysql 實(shí)現(xiàn)的簡(jiǎn)易blog,可以實(shí)現(xiàn)增刪改查.

一、數(shù)據(jù)庫(kù)及表結(jié)構(gòu)

數(shù)據(jù)庫(kù):test

表:micro_blog(僅僅有一個(gè)表)字段：id,title,date,content,hits

表結(jié)構(gòu)如下:

CREATE TABLE `micro_blog` (

  `id` int(20) unsigned NOT NULL AUTO_INCREMENT,

  `title` text NOT NULL ,

  `content` longtext NOT NULL,

  `date` datetime NOT NULL DEFAULT '0000-00-00 00:00:00',

  `hits` int(20) DEFAULT 0,

   PRIMARY KEY (`ID`)

)ENGINE=MyISAM DEFAULT CHARSET=utf8;

二、文件

文件詳細(xì)描述

文件描述

default.php 默認(rèn)主頁(yè)。顯示博文與操作連接。

add.php 添加新博文的功能模塊。

edit.php 對(duì)已經(jīng)添加過(guò)的博文進(jìn)行修改操作。

delete.php 刪除博文模塊。

view.php 顯示博文的詳細(xì)信息（標(biāo)題|添加日期|瀏覽次數(shù)|內(nèi)容）。

conn.php 鏈接數(shù)據(jù)庫(kù)操作。在其它文件中被引用。

conn.php

<?php

//連接MySql數(shù)據(jù)庫(kù)服務(wù)

$conn = @mysql_connect("localhost:3306","root","www.361way.com") or die("連接數(shù)據(jù)庫(kù)服務(wù)器失敗！"); //Vevb.com

//連接ly_php_base數(shù)據(jù)庫(kù)

@mysql_select_db("test",$conn) or die("未能連接到數(shù)據(jù)庫(kù)！");

mysql_query("SET NAMES 'UTF8'");

?>

注:后面的set names utf8,如果不執(zhí)行,會(huì)出現(xiàn)插入數(shù)據(jù)庫(kù)中的漢字會(huì)變成亂碼.

default.php

<?php

include("conn.php");

//搜索關(guān)鍵字的管理

if(!emptyempty($_GET['keys'])){

    $keys = "WHERE title like '%".$_GET['keys']."%'";

} else {

    $keys = "";

}

$sql = "SELECT * FROM micro_blog ".$keys." ORDER BY id DESC LIMIT 10";

$query = mysql_query($sql);

$rs = mysql_fetch_array($query);

?>

<html>

<head>

<title>我的微博客主頁(yè)</title>

<meta http-equiv="Content-Type" content="text/html;charset=utf-8"/>

</head>

<body>

<a href="add.php">添加內(nèi)容</a>

<form action="" method="get">

  <input type="text" name="keys"/>

  <input type="submit" name="submit" value="內(nèi)容搜索"/>

</form>

<hr color="#FF9900" size="3" />

<?php

if(!$rs){

    echo "沒(méi)有相關(guān)內(nèi)容！";

}

//沒(méi)有實(shí)現(xiàn)分頁(yè)導(dǎo)航功能

while($rs){

?>

<h2>標(biāo)題：<?php echo $rs['title'];?>|<a href="edit.php?id=<?php echo $rs['id'];?>">編輯</a>|<a href="delete.php?id=<?php echo $rs['id'];?>">刪除</a></h2>

<li>日期：<?php echo $rs['date'];?></li>

<p>內(nèi)容<?php echo iconv_substr($rs['content'],0,50,"UTF-8");?>...... <a href="view.php?id=<?php echo $rs['id'];?>">|查看詳細(xì)內(nèi)容|</a></p>

<hr color="#0033FF" size="5" />

<?php

    $rs = mysql_fetch_array($query);

}

?>

</body>

</html>

add.php

<?php

//引入連接數(shù)據(jù)庫(kù)文件

include("conn.php");

if(!emptyempty($_POST['submit'])){

    $title = $_POST['title'];

    $content = $_POST['content'];

    $sql = "INSERT INTO micro_blog VALUES(NUll,'$title','$content',now(),0)";

    mysql_query($sql);

}

?>

<!DOCTYPE HTML>

<html>

<head>

<meta http-equiv="content-type" content="text/html;charset=utf-8"/>

<title>發(fā)布微博頁(yè)面</title>

</head>

<body>

<a href="default.php">查看內(nèi)容</a>

<hr color="#0033CC" size="3px"/>

<form action="add.php" method="post">

  標(biāo)題：

  <input type="text" name="title"/>

  <br />

  內(nèi)容：

  <textarea rows="5" cols="50" name="content"></textarea>

  <br />

  <input type="submit" name="submit" value="提交"/>

  <br />

</form>

</body>

</html>

edit.php

<?php

include("conn.php");

if(!emptyempty($_GET['id'])){

    $id = $_GET['id'];

    $sql = "select * from micro_blog where id = ".$_GET['id'];

    $query = mysql_query($sql);

    $rc = mysql_fetch_array($query);

}

if(!emptyempty($_POST['update'])){

    echo "更新按鈕提交成功！";

}

?>

<!DOCTYPE HTML>

<html>

<head>

<meta http-equiv="Content-Type" content="text/html; charset=utf-8">

<title>編輯頁(yè)面</title>

</head>

<body>

<form action="edit.php?id=<?php echo $id;?>" method="post">

  標(biāo)題：

  <input type="text" name="title" value="<?php echo $rc['title'];?>"/>

  <br />

  內(nèi)容：

  <textarea rows="5" cols="50" name="content"><?php echo $rc['content'];?></textarea>

  <br />

  <input type="submit" name="update" value="更新"/>

  <br />

</form>

</body>

</html>

delete.php

<?php

include("conn.php");

if(!emptyempty($_GET['id'])){

            mysql_query("delete from micro_blog where id =".$_GET['id']);

} else {

        echo "參數(shù)引入失敗！";

}

?>

<!DOCTYPE HTML>

<html>

<head>

<meta http-equiv="Content-Type" content="text/html; charset=utf-8">

<title><?php echo $rc['title'];?>|我的微博客</title>

</head>

<body>

<a href="default.php">返回主頁(yè)面</a>

<hr color="#00FFFF" size="5px"/>

<h2><?php echo $rc['title'];?>

  <hr color="#006699" size="3px">

</h2>

<li><?php echo "日期：".$rc['date']."|瀏覽次數(shù)：".$rc['hits'];?></li>

<p><?php echo $rc['content'];?></p>

</body>

</html>

view.php

<?php

include("conn.php");

if(!emptyempty($_GET['id'])){

    $sql = "SELECT * FROM micro_blog WHERE id = ".$_GET['id'];

    $rc = mysql_fetch_array(mysql_query($sql));

    mysql_query("UPDATE micro_blog SET hits = hits + 1 WHERE id = ".$_GET['id']);

} else {

    echo "參數(shù)引入失敗！";

}

?>

<!DOCTYPE HTML>

<html>

<head>

<meta http-equiv="Content-Type" content="text/html; charset=utf-8">

<title><?php echo $rc['title'];?>|我的微博客</title>

</head>

<body>

<a href="default.php">返回主頁(yè)面</a>

<hr color="#00FFFF" size="5px"/>

<h2><?php echo $rc['title'];?>

  <hr color="#006699" size="3px">

</h2>

<li><?php echo "日期：".$rc['date']."|瀏覽次數(shù)：".$rc['hits'];?></li>

<p><?php echo $rc['content'];?></p>

</body>

</html>