Question

我有一个页面，可以从数据库中检索培训广告列表并显示在表格中。另一页显示了点击培训名称时有关培训的详细信息。详细信息页面还允许编辑和删除广告。在编辑或删除广告时，页面会重定向到广告列表。问题是，如果我在重定向到广告列表页面时删除了广告，则在编辑广告而不访问其他页面时，已删除的广告仍会在列表中。但是，如果我删除广告而不进行编辑或在编辑后如果我访问其他网页，则返回并删除广告，一切正常。对不起，很长的问题。任何形式的帮助表示赞赏。代码如下。

广告列表页面：

$newData = $data->flatten()->filter(function($val) {
    return $val->competitorId === "someIdid"
)}

广告详情页面（编辑和删除）：

$connect = mysqli_connect($host,$user,$password,$database) or die ("Couldn't connect database");
$sql    =   "SELECT * FROM ad WHERE trainer_id=$trainer_id ORDER BY id desc  ";
$result =   mysqli_query($connect,$sql) or die("Couldn't execute query.");
$count=mysqli_num_rows($result);
                $totalPages=ceil($count/$result_per_page);
$sql    =   "SELECT * FROM ad WHERE trainer_id=$trainer_id ORDER BY id desc LIMIT $start, $result_per_page ";
$result =   mysqli_query($connect,$sql) or die("Couldn't execute query.");
if($count!=0)
{
echo    "<table cols='4'  cellspacing='25'>";

echo    "<th>Training Name</th>";
echo    "<th>Trainer / Training Center</th>";
echo    "<th>Training Dates</th>";
echo    "<th>Registration Starts</th>";
echo    "<th>Viewed</th>";

while($row=mysqli_fetch_assoc($result))
{

extract($row );



echo    "<tr><td  ><a href='personal_ad_details.php?id=$id'>$training_name</a></td>";
echo    "<td >$trainer_name</td>";
echo    "<td >$training_start - $training_end</td>";
echo    "<td >$reg_start</td>";
echo    "<td >$view</td></tr>";

}

echo    "</table>";

Answer 1

您应该检查您的表单操作网址：

<form action="<?php echo htmlspecialchars('personal_ad_details.php')?><?php echo "?id=".$currentID?>" onSubmit="return confirm('Are you sure you want to delete the Ad?');" method="post">

要

<form action="" onSubmit="return confirm('Are you sure you want to delete the Ad?');" method="post">

注意：另外一个好的做法是你应该从页面开始提交流程代码：

<?php 
$connect = mysqli_connect($host,$user,$password,$database) or die ("Couldn't connect database");


if(isset($_POST['delete']))
{

    include('misc.inc');


    $connect    =   mysqli_connect($host,$user,$password,$database)
                    or die ("Couldn't connect to database.");
    $sql        =   "DELETE FROM ad WHERE id=$currentID ";
    mysqli_query($connect,$sql) or die("Couldn't execute query");
    $url="personal_ad_list.php";
    echo '<script type="text/javascript">'; 
          echo 'window.location.href="'.$url.'";'; 
          echo '</script>'; 
          echo '<noscript>'; 
          echo '<meta http-equiv="refresh" content="0;url='.$url.'" />'; 
          echo '</noscript>'; exit;

}

if(isset($_POST['update']))
{

    include('misc.inc');


    $connect    =   mysqli_connect($host,$user,$password,$database)
                    or die ("Couldn't connect to database.");
    $sql        =   "UPDATE ad SET training_details='$_POST[Telim_Melumatlari]' WHERE id=$currentID ";
    mysqli_query($connect,$sql) or die("Couldn't execute query");
    $url="personal_ad_list.php";
    echo '<script type="text/javascript">'; 
          echo 'window.location.href="'.$url.'";'; 
          echo '</script>'; 
          echo '<noscript>'; 
          echo '<meta http-equiv="refresh" content="0;url='.$url.'" />'; 
          echo '</noscript>'; exit;

}


if(isset($_GET['id']) && !empty($_GET['id'])){

 $currentID = $_GET['id'];
$sql    =   "SELECT * FROM ad WHERE id=$currentID";
$result =   mysqli_query($connect,$sql) or die("Couldn't execute query.");
$row=   mysqli_fetch_array($result);
extract($row);
echo    "<div id='ad_header'>";
echo    "<h2>
 $training_name</h2>";
echo    "<p>Trainer/Training Center:</p> $trainer_name ";
echo    "<p>Training Date(s):  </p>$training_start - $training_end";
echo    "<p>Registration starts:  </p>$reg_start";
echo "<p>Phone: </p>$mobile";
if($email!=''){echo "<p>Email: </p><a href='mailto:$email'>$email</a>";}
if($website!=''){echo "<p>Web Site: </p><a href='http://$website' target='_blank'>$website</a>";}

echo    "</br>";

echo    "</div>";
echo    "<div id='ad_main'>";

echo    "<p>Training details:</p> </br>"?> <form action="" method="post"> <textarea  style="position:relative; left:0%" rows="10" cols="25"  name="Telim_Melumatlari" ><?php echo $training_details; ?></textarea>
<?php 
echo    "</div>";

}

?>
<input style="margin:10px" type="submit" name="update" value="UPDATE"></form>

<form action="" onSubmit="return confirm('Are you sure you want to delete the Ad?');" method="post"><input style="margin:10px; background-color:red" type="submit" name="delete"  value="DELETE AD"></form>

如果第一个表单提交，页面上的PHP第二个表单不会刷新目标页面

1 个答案: