php - 从不使用存储过程的数据库中编辑和删除特定行

Question

我使用以下代码删除特定行，但无法正常工作。我有两个文件，一个是brand.php，一个是delete.php。这是代码。如何从数据库中删除特定行。 enter image description here

品牌.php

$sql = "http://www.query.mydomain.com/default.aspx?dbname=compname_dbName&query=select Code, Id, Name from Brand where CompanyCode = 87";
$sqlquery = str_replace ( " ", "%20", $sql );
$json = file_get_contents ( $sqlquery );
$data = json_decode ( $json, TRUE );
$result = array ();
$i = 1;
foreach ( $data as $item ) {
    $Rowid = $item ['Code'];
    $BId = $item ['Id'];
    $BName = $item ['Name'];
    ?>
        <form method = "post" action = "">      
            <tbody>
            <tr>
            <td> <?php echo $Rowid; ?> </td>
            <td><?php echo $BId; ?> </td>
            <td><?php echo $BName; ?> </td>
            <td><p data-placement="top" data-toggle="tooltip" title="Edit">
<button class="btn btn-primary btn-xs" data-title="Edit" data-toggle="modal" data-target="#edit">
            <span class="glyphicon glyphicon-pencil"></span>
            </button>
        </p></td>
        <td><p data-placement="top" data-toggle="tooltip" title="Delete">
        <a href="delete.php?rid=<?php echo $Rowid; ?>"><button type="submit" id="rid" name="rid" class="btn btn-danger btn-xs">
            <span class="glyphicon glyphicon-trash"></span></button></a>
            </p></td>
        </tr>
    </tbody>
        </form>
    <?php $i++; } ?>
    </table>

删除.php

$Rowid=$_GET['rid'];
    $sql = "http://www.query.mydomain.com/default.aspx?dbname=" . $GLOBALS    ['strDB'] . "&query=Delete From sp_DelBrand Where Code = ".$Rowid."";
    $sqlquery = str_replace ( " ", "%20", $sql );
    $json = file_get_contents ( $sqlquery );
    $data = json_decode ( $json, TRUE );
    $resultID;
    $Result1 = ' ';
    foreach ( $data as $item ) {
        $Result1 = $item ['Result'];
        $resultID = $item ['ResultId'];
    }
    foreach($data as $item)
        {
            $Result1 = $item['Result'];
            $resultID = $item['ResultId'];
        }
    echo '<script type="text/javascript">';
    echo 'alert("'.$Result1.'");';
    echo '</script>';
    if (!isset($Result1))
        {
            echo '<script type="text/javascript">window.history.go(-1);</script>';
        }
    else
        {
            echo '<script type="text/javascript">window.history.go(-1);</script>';
        }   
}
?>

点击删除图标后，没有任何重定向到delete.php?id=rowid的迹象，但是页面加载并返回brand.php，并且行记录没有被删除，我这是怎么了!!

Answer 1

这是 PDO 连接和删除行查询:

<?php

$id = 5;

$dbh = new PDO('mysql:host=localhost;dbname=deletelimit10', "root", "");

$query = $dbh->query("DELETE FROM content WHERE id = '$id'"); // Run your query

?>