php - 小型微博系统

效果：

数据库：

项目结构：

add.php : 添加微博。

conn.php : 数据库配置文件。

delete.php : 删除博客代码。

disinfo.php : 显示微博详细信息。

index.php: 主页。

update.php：编辑微博。

add.php:

<?php
	//引入数据库连接文件
	require(\'conn.php\');

	//判断是否提交数据
	if(!empty($_POST[\'sub\'])) {
		//接收数据
		$title = $_POST[\'title\'];
		$content = $_POST[\'content\'];
		
		//判断时候填写信息
		if($title == \'\' || $content == \'\') {
			echo \'请填写完整信息！\';
			exit();
		}
		
		//SQL语句
		$sql = "INSERT INTO `tb_article` (`title`, `datetime`, `content`) VALUES (\'$title\',now(),\'$content\')";
		
		//执行并判断是否执行成功
		if(@mysql_query($sql) or die(\'SQL执行异常！\')){
			echo \'<script language=javascript>alert("发表成功！");window.location.replace("index.php")</script>\';
		}
	}
	
?>
<html>
	<head>
		<meta charset="UTF-8">
		<title>添加微博</title>
	</head>
	<body>
		<a href= "index.php">返回首页</a><br/>
		<form action="add.php" method="POST">
			标题：<input type="text" name="title" /><br/>
			内容：<textarea rows="3" name="content"></textarea><br/>
			<input type="submit" name="sub" value="发表"/>
		</form>
	</body>
</html>

conn.php:

<?php
	//连接数据库服务器
	@mysql_connect(\'localhost:3306\',\'root\',\'123456\') or die(\'连接数据库服务器失败！\');

	//选择数据库
	@mysql_select_db(\'db_weibo\') or die(\'选择数据库失败！\');
	
	//设置编码
	@mysql_query("SET NAMES \'UTF8\'") or die(\'数据库编码错误！\');
?>

delete.php:

<?php
	//引入数据库连接
	require(\'conn.php\');
	
	//接收index.php页面传递过来的id
	if(!empty($_GET[\'id\'])) {
		//接收数据
		$id = $_GET[\'id\'];
		
		//SQL语句
		$sql = "DELETE FROM `tb_article` WHERE ID = \'$id\' limit 1";
		
		//执行
		if(@mysql_query($sql) or die(\'SQL语句执行失败！\')) {
			echo \'<script >alert("删除成功！");window.location.replace("index.php")</script>\';
			exit();
		}
	}
?>

disinfo.php:

<?php
	//引入数据库连接文件
	require(\'conn.php\');
	
	//接收id
	if(!empty($_GET[\'id\'])) {
		//接收数据
		$id = $_GET[\'id\'];
		
		//SQL语句
		$sql = "SELECT * FROM `tb_article` WHERE id = \'$id\' limit 1";
	
		//获取资源句柄
		$queryhandle = @mysql_query($sql) or die(\'SQL执行失败！\');	
		
		//获取一行数据
		$result = mysql_fetch_array($queryhandle,MYSQL_ASSOC);
		
		//SQL语句(修改点击量)
		$sql = "UPDATE `tb_article` SET `click` = `click`+1 WHERE id = \'$id\'";
		
		//执行并判断是否执行成功
		@mysql_query($sql) or die(\'SQL执行异常！\');
	}
?>
<html>
	<head>
		<meta charset="UTF-8">
		<title>微博信息内容</title>
	</head>
	<body>
		<a href= "index.php">返回首页</a><br/>
		标题：<?php echo $result[\'title\'] ?>  <br/>
		时间：<?php echo $result[\'datetime\'] ?>  <br/>
		点击量：<?php echo $result[\'click\'] ?>  <br/>
		内容：<?php echo $result[\'content\'] ?>  <br/>
	</body>
</html>

index.php:

<?php
	//引入数据库连接文件
	require(\'conn.php\');
	
	//获取搜索字段
	$keys = $_POST[\'keys\'];
 
	//判断是否有值
	if(empty($keys)) {
		$s = \'\';
	} else {
		$s = "  where `title` like \'%$keys%\'";
	}
 
	//获取数据库数据
	//SQL语句
	$sql = "select * from `tb_article`".$s;
	
	//获取资源句柄
	$queryhandle = @mysql_query($sql) or die(\'SQL执行失败！\');	
	
	//获取总条数
	$totalnum = "SELECT COUNT(*) FROM `tb_article`";
	$querytotal = mysql_query($totalnum);
	$totlnum = mysql_fetch_array($querytotal);
?>
<html>
	<head>
		<meta charset="UTF-8">
		<title>添加微博</title>
	</head>
	<body>
		<a href= "add.php">添加微博</a>
		<hr/>
			<form action="index.php" method = "post">
				<input type="text" name = "keys" />
				<input type = "submit" name = "search" value="搜索" />
			</form>
		<hr/>
		<!-- 循环显示数据库内容 -->
		<?php while($result = mysql_fetch_array($queryhandle,MYSQL_ASSOC)) { ?>
			<h3>标题：<a href = "disinfo.php?id=<?php echo $result[\'id\'] ?>"><?php echo $result[\'title\'] ?></a>  
　　　　　　　　 |  <a href = "update.php?id=<?php echo $result[\'id\'] ?>"> 编辑 </a> | <a href = "delete.php?id=<?php echo $result[\'id\'] ?>"> 删除 </a> |</h3>
			<h3>时间：<?php echo $result[\'datetime\'] ?> </h3>
			<h3>点击量：<?php echo $result[\'click\'] ?> </h3>
			<p><?php echo $result[\'content\'] ?> </p>
			<hr/>
		<?php } ?>
	</body>
</html>

update.php:

<?php
	//引入数据库连接文件
	require(\'conn.php\');
	
	//接收id
	if(!empty($_GET[\'id\'])) {
		//接收数据
		$id = $_GET[\'id\'];
		
		//SQL语句
		$sql = "SELECT * FROM `tb_article` WHERE id = \'$id\' limit 1";
	
		//获取资源句柄
		$queryhandle = @mysql_query($sql) or die(\'SQL执行失败！\');	
		
		//获取一行数据
		$result = mysql_fetch_array($queryhandle,MYSQL_ASSOC);
	}
	

	//判断是否提交数据
	if(!empty($_POST[\'sub\'])) {
		//接收数据
		$hid = $_POST[\'hid\'];
		$title = $_POST[\'title\'];
		$content = $_POST[\'content\'];
		
		//判断时候填写信息
		if($title == \'\' || $content == \'\') {
			echo \'请填写完整信息！\';
			exit();
		}
		
		//SQL语句
		$sql = "UPDATE `tb_article` SET `title` = \'$title\', `content` = \'$content\' WHERE id = \'$hid\'";
		
		//执行并判断是否执行成功
		if(@mysql_query($sql) or die(\'SQL执行异常！\')){
			echo \'<script language=javascript>alert("修改成功！");window.location.replace("index.php")</script>\';
		}
	}
	
?>
<html>
	<head>
		<meta charset="UTF-8">
		<title>添加微博</title>
	</head>
	<body>
		<a href= "index.php">返回首页</a><br/>
		<form action="update.php" method="POST">
			<input type = "hidden" name = "hid" value = "<?php echo $result[\'id\'] ?>">
			标题：<input type="text" name="title" value="<?php echo $result[\'title\'] ?>" /><br/>
			内容：<textarea rows="3" name="content"><?php echo $result[\'content\'] ?></textarea><br/>
			<input type="submit" name="sub" value="发表"/>
		</form>
	</body>
</html>