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HomeBackend DevelopmentPHP Tutorial【PHP MYSQL_QUERY删除不了数据】如题

这是代码
/**
 * Created by PhpStorm.
 * User: mdf
 * Date: 2015/3/18
 * Time: 13:59
 */
$id=$_REQUEST['id'];
$delreply="Delete from tb_blog_reply where Blog_id=".$id;
$delblog="Delete from tb_blog_information where Blog_id=".$id;
$DelR=mysql_query($delreply);
$DelB=mysql_query($delblog);
echo $delreply;
echo $delblog;
$url="http://localhost/Myhome/Contorl.php";
if($DelR)
{
    $DelB=mysql_query($delblog);
    if($DelB){
    echo "<script>alert('删除成功!')</script>";
    echo "<script>"; <br /> echo "window.location.href='$url'"; <br /> echo "</script>";
    }
    else
    {
    echo "<script>alert('删除失败1!')</script>";
        echo "<script>"; <br /> echo "window.location.href='$url'"; <br /> echo "</script>";

        }
}
else
{
    echo "<script>alert('删除失败2!')</script>";
    echo "<script>"; <br /> echo "window.location.href='$url'"; <br /> echo "</script>";
}
?>

SQL语句打印出来都是能在数据库删除的,可是运行mysql_query却不能删掉,


回复讨论(解决方案)

没有看到连接数据库的代码

     $con=mysql_connect("localhost","root","");
     if(!$con)
     {
     die('Cound not connect the db!!'.mysql_error());
     }
     mysql_select_db("the_blog");
     mysql_query("set names 'utf8'");

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