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楼主(阅:28108/回:4)php增删改查,自己写的demo。conn.php <?php //第一步:链接数据库 $conn=@mysql_connect("localhost:3306","root","root")or die ("mysql链接失败"); //第二步: 选择指定的数据库,设置字符集 @mysql_select_db("php_blog",$conn) or die ("db链接失败".mysql_error()); mysql_query('SET NAMES UTF8')or die ("字符集设置错误"); ?> 昌硕内荐官网:www.51yotn.com
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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> 內荐微信公众号:pega_tuijian(昌硕内荐平台)
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del.php <?php include("conn.php");//引入链接数据库<pre name="code" class="html"><?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 $rs['contents']?></textarea><br> <input type="submit" name="sub" value="发表"> </form></pre><br> if(!empty($_GET['del'])){ $d=$_GET['del']; $sql="delete from news where id ='$d'"; } $query=mysql_query($sql); echo "删除成功"; ?><p></p> <pre></pre> <br> 自助内荐www.51yotn.com
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edit.php <p></p> <p><br> </p> <p></p><pre name="code" class="html"><?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 $rs['contents']?></textarea><br> <input type="submit" name="sub" value="发表"> </form></pre><br> 內荐微信公众号:pega_tuijian(昌硕内荐平台)
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query.php <pre name="code" class="html"><a href="add.php">添加内容</a> <hr> <hr> <form> <input type="text" name="keys" /> <input type="submit" name="subs" value="搜索"/> </form> <?php include("conn.php");//引入链接数据库 if(!empty($_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 } ?> </pre><br> <p></p> <p><br> </p> 自助内荐www.51yotn.com
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