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批量删除文章ID?

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Release: 2016-06-23 14:10:51
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(list.php): <form action="del.php" method="post"> <?php $sql="select * from news where leibie='$leibieming'";$r=$mysqli->query($sql); while($rs=$r->fetch_assoc()){ ?> <input type="checkbox" value="<?=$rs[id]?>" /><?=$rs[title]?> <?php } ?> <input type="button" value="删除""></form> 2、处理惩罚页面(del.php): <?php if($del_id!=""){ $del_num=count($del_id); for($i=0;$i<$del_num;$i++){ $mysqli->query("delete news.......");} echo("<script type='text/javascript'>alert('删除乐成!');history.back();</script>"); }else{ echo("<script type='text/javascript'>alert('请先选择项目!');history.back();</script>"); } ?> 
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在网上抄回来的,del_id 这个变量是怎么传递的?


回复讨论(解决方案)

你抄漏了!

应为


另外
if($del_id!=""){
应改写为
if(isset($_POST['del_id'])){
$del_id = $_POST['del_id'];

还有

改为

否则页面无法提交

你抄漏了!

应为


另外
if($del_id!=""){
应改写为
if(isset($_POST['del_id'])){
$del_id = $_POST['del_id'];

删除的结果是 array 提示输出。

还有

改为

否则页面无法提交

修正了。

贴出你修改后的 php 代码

if(isset($_POST['del_id'])){    $del_id=$_POST['del_id'];    $del_num=count($del_id);    for($i=0;$i<$del_num;$i++){        $mysqli->query("delete news,newscontents from news inner join newscontents on news.Nid=newscontents.nid where news.Nid='$del_id'");        echo $del_id.'删除';    }}else{    echo("<script type='text/javascript'>alert('请先选择项目!');history.back();</script>");}
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删除的执行语句。

<form action="delAllZhangJie.php"method="post"><?php    $Name="国际新闻";    $sql="select Nid,Title from news where Class='$Name' order by Nid desc";    $csql=$mysqli->query($sql);    while($rs=$csql->fetch_assoc()){?>        <input type="checkbox" name="del_id[]" value="<?=$rs['Nid']?>" />-<?=$rs['Nid']?>-<?=$rs['Title']?><br><?php    }?>    <input type="submit"  value="删除""></form>
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贴出你修改后的 php 代码

帮我看看是哪的问题咯

$mysqli->query("delete news,newscontents from news inner join newscontents on news.Nid=newscontents.nid where news.Nid='$del_id[$i]'");
        echo $del_id[$i].'删除';

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