1.链接数据库通用方法：conn.php
<?php //第一步：链接数据库 [email protected]_connect("localhost:3306","root","root")or die ("mysql链接失败"); //第二步: 选择指定的数据库，设置字符集 @mysql_select_db("php_blog",$conn) or die ("db链接失败".mysql_error()); mysql_query('SET NAMES UTF8')or die ("字符集设置错误");?>
2.增加 add.php
<?php include("conn.php");//引入链接数据库 if(!empty($_POST['sub'])){ $title=$_POST['title']; $con=$_POST['con']; echo $sql="insert into news(id,title,dates,contents) value (null,'$title',now(),'$con')" ; mysql_query($sql); echo"插入成功"; }?><form action="add.php" method="post"> 标题: <input type="text" name="title"><br> 内容: <textarea rows="5" cols="50" name="con"></textarea><br> <input type="submit" name="sub" value="发表"></form>3.删除del.php
<?php include("conn.php");//引入链接数据库<?php include("conn.php");//引入链接数据库 if(!empty ($_GET['id'])){ $sql="select * from news where id='".$_GET['id']."'"; $query=mysql_query($sql); $rs=mysql_fetch_array($query); } if(!empty($_POST['sub'])){ $title=$_POST['title']; $con=$_POST['con']; $hid=$_POST['hid']; $sql="update news set title='$title',contents='$con' where id='$hid' limit 1 "; mysql_query($sql); echo "<script> alert('更新成功'); location.href='index.php'</script>"; echo"更新成功"; }?><form action="edit.php" method="post"> <input type="hidden" name="hid" value="<?php echo $rs['id']?>"/> 标题: <input type="text" name="title" value="<?php echo $rs['title']?>"><br> 内容: <textarea rows="5" cols="50" name="con"><?php echo $rs['contents']?></textarea><br> <input type="submit" name="sub" value="发表"></form>
if(!empty($_GET['del'])){ $d=$_GET['del']; $sql="delete from news where id ='$d'"; } $query=mysql_query($sql); echo "删除成功"; ?>
4，改 edit.php页面
<?php include("conn.php");//引入链接数据库 if(!empty ($_GET['id'])){ $sql="select * from news where id='".$_GET['id']."'"; $query=mysql_query($sql); $rs=mysql_fetch_array($query); } if(!empty($_POST['sub'])){ $title=$_POST['title']; $con=$_POST['con']; $hid=$_POST['hid']; $sql="update news set title='$title',contents='$con' where id='$hid' limit 1 "; mysql_query($sql); echo "<script> alert('更新成功'); location.href='index.php'</script>"; echo"更新成功"; }?><form action="edit.php" method="post"> <input type="hidden" name="hid" value="<?php echo $rs['id']?>"/> 标题: <input type="text" name="title" value="<?php echo $rs['title']?>"><br> 内容: <textarea rows="5" cols="50" name="con"><?php echo $rs['contents']?></textarea><br> <input type="submit" name="sub" value="发表"></form>
5.查，列表页面<a href="add.php">添加内容</a><hr><hr><form> <input type="text" name="keys" /> <input type="submit" name="subs" value="搜索"/></form><?php include("conn.php");//引入链接数据库 if(!empty($_GET['keys'])){ $w=" title like '%".$_GET['keys']."%'"; }else{ $w=1; } $sql="select * from news where $w order by id desc"; $query=mysql_query($sql); while($rs=mysql_fetch_array($query)){ ?><h2>标题:<a href="view.php?id=<?php echo $rs['id'] ?>"><?php echo $rs['title'] ?></a> <a href="edit.php?id=<?php echo $rs['id'] ?>">编辑</a>｜｜<a href="del.php?del=<?php echo $rs['id'] ?>">删除</a></h2><li><?php echo $rs['dates'] ?></li><p><?php echo $rs['contents'] ?></p><hr><?php}?>