Question

美好的一天。我想删除用户选择的项目。但事实证明用户点击的按钮，第一个数据行正在删除。我卡在这里。请帮忙。

这是我的代码：

HTML

    <form  method="POST" action="<?php $_PHP_SELF ?>">
<?php

        $query = "select * from tblsr";
        $request = mysql_query($query)or die(mysql_error());?>
        <table class="table table-hover">
        <tr>    
                <th>Softwares</th>
                <th>Difficulty</th>
                <th></th>
                <th></th>
                </tr>
        <?php while($row = mysql_fetch_array($request)){
        ?>
        <tbody>
            <tr class="success">
                <td><?php echo $row['Software']; ?></td>
                <td><?php echo $row['Difficulty']; ?></td>
                <td><input type="submit" class="btn btn-sm btn-success" name="change" value="Change Difficulty"/></td>  
                <td><input type="submit" class="btn btn-sm btn-danger" name="remove" value="Delete"/></td>
                <input type="hidden" name="id[]" value="<?php echo $row['id']; ?>"/>
            </tr>
        </tbody>
        <?php
        }

?>  </form>

删除查询

if(isset($_POST['remove'])){
 $count = count($_POST['id']); //get total number of array element
for ($i = 0; $i < $count; $i++) {
$id = $_POST['id'][$i];
        $sql = "Delete FROM tblsr 
                Where id = '$id'";

            $success = mysql_query($sql) or die (mysql_error());
            mysql_close();  

            if ($success == TRUE){

            ?>
                <script>
                    alert('Deleted.');  
                    window.location.href='manageRequest.php';
                </script>

            <?php
        }

}
    }

Answer 1

您的代码的问题在于您永远不会增加$i（$i++），并且您的删除查询始终会影响第一行（ID）。您可以在$i++循环中添加while来修复它，但我建议您只需执行以下操作，并且不要为循环而烦恼。

删除查询

$rm = $_POST['id'];
if (isset($_POST['remove'])) {
    foreach ($rm as $key => $value) {
        $rm[$key] = "'".$value."'";
    }
    $sql = "Delete FROM tblsr 
                Where id IN(" . implode(",", $rm) .")";
    die($sql);
    $success = mysql_query($sql) or die(mysql_error());

    if ($success) {
        ?>
        <script>
            alert('Deleted.');
            window.location.href = 'manageRequest.php';
        </script>
        <?php

    }

}

删除用户的表单示例：

<form  method="POST" action="<?php $_PHP_SELF ?>">
    <?php
    $query = "select * from tblsr";
    $request = mysql_query($query) or die(mysql_error());
    ?>
    <table class="table table-hover">
        <tr>    
            <th>Softwares</th>
            <th>Difficulty</th>
            <th></th>
            <th></th>
        </tr>
        <?php
        while ($row = mysql_fetch_array($request)) {
            ?>
            <tbody>
                <tr class="success">
                    <td><?php echo $row['Software']; ?></td>
                    <td><?php echo $row['Difficulty']; ?></td>
                    <td>
                    <input type="checkbox" name="id[]" value="<?php echo $row['id']; ?>"/>
                    delete
                    </td>
            </tr>
            </tbody>
            <?php
        }
        ?> 
    </table>
    <button type="submit" name="remove" class="btn  btn-success">
        delete checked user
    </button>
</form>

删除所选项目

1 个答案:

删除用户的表单示例：