Question

如果添加了用于上传图片和pdf的代码，更新查询将无法正常工作。除prepare和execute外，我具有相同的插入和更新代码，插入查询工作得很好，更新查询却没有。我还在表格中加入了enctype="multipart/form-data"，以便也可以从$ _FILES获取数据。此外，我使用$_FILES['photo']['tmp_name']和$_FILES['pdf']['tmp_name']来使用功能move_uploaded_file move_uploaded_file($_FILES['photo']['tmp_name'], 'destination');和move_uploaded_file($_FILES['pdf']['tmp_name'], 'destination');

移动它们

function edit_profile($pid)
{
    if($_SERVER['REQUEST_METHOD']=='POST')
    {
        echo "<pre>";
        print_r($_POST);
        print_r($_FILES);
        echo "</pre>";
        $fullname = $_POST['fullname'];
        $email = $_POST['email'];
        $contact = $_POST['contact'];
        $sel_post = $_POST['sel_post'];
        $txt_post = $_POST['post'];
        $post = "";
        if(empty($txt_post))
        {
            $post = $sel_post;
        }
        else
        {
            $post = $this->add_new_post($txt_post);
        }

        if(empty($fullname) || empty($contact))
        {
            array_push($this->errors, MEND_FIELD_ERROR);
            return;
        }

        if(!empty($_FILES['photo']['name']))
            {
                $photo = $_FILES['photo'];
                $allowed_ext = array('png','jpg', 'pdf','jpeg', 'bmp', 'gif');
                $allowed_size = 20000000;
                $tmp_photo = $photo['tmp_name'];
                $photo_size = $photo['size'];
                $photo_error = $photo['error'];
                $photo_ext = explode('.',$photo['name']);
                $photo_ext = strtolower(end($photo_ext));

                if(in_array($photo_ext,$allowed_ext))
                {
                    if($photo_size <= $allowed_size)
                    {
                        $photo_new_name = time()."_".uniqid('',true).'.'.$photo_ext;
                        $upload_destination = './cdn/uploads/profile/'.$photo_new_name;
                        if(move_uploaded_file($tmp_photo,$upload_destination))
                        {
                            $photo_to_db = $photo_new_name;
                        }
                        else
                        {
                            array_push($this->errors, STORAGE_ERROR);
                            return;
                        }

                    }
                    else
                    {
                        array_push($this->errors, $document_name.' : '.FILE_SIZE_ERROR);
                        return;
                    }
                }
                else
                {
                    array_push($this->errors, $photo_ext.' : '.FILE_EXT_ERROR);
                    return;
                }
            }

            if(!empty($_FILES['pdf']['name']))
            {
                $pdf = $_FILES['pdf'];
                $allowed_pdf_ext = array('pdf');
                $allowed_pdf_size = 20000000;
                $tmp_pdf = $pdf['tmp_name'];
                $pdf_size = $pdf['size'];
                $pdf_error = $pdf['error'];
                $pdf_ext = explode('.',$pdf['name']);
                $pdf_ext = strtolower(end($pdf_ext));

                if(in_array($pdf_ext,$allowed_pdf_ext))
                {
                    if($photo_size <= $allowed_pdf_size)
                    {
                        $pdf_new_name = time()."_".uniqid('',true).'.'.$pdf_ext;
                        $upload_pdf_destination = './cdn/uploads/profile_pdf/'.$pdf_new_name;
                        if(move_uploaded_file($tmp_pdf,$upload_pdf_destination))
                        {
                            $pdf_to_db = $pdf_new_name;
                        }
                        else
                        {
                            array_push($this->errors, STORAGE_ERROR);
                            return;
                        }

                    }
                    else
                    {
                        array_push($this->errors, $document_name.' : '.FILE_SIZE_ERROR);
                        return;
                    }
                }
                else
                {
                    array_push($this->errors, $photo_ext.' : '.FILE_EXT_ERROR);
                    return;
                }
            }

        $statement = $this->db->prepare("UPDATE `profiles` SET `fullname`=?,`email`=?,`contact`=?,`post`=?, `photo`=?, `pdf`=? WHERE `pid`=?");
        if($statement->execute([$fullname,$email,$contact,$post,$pid, $pdf_to_db, $photo_to_db]))
        {
            ExitThis::send_to(URL.'profile/view_profile?id='.$pid);
        }
        else
        {
            array_push($this->errors, DATABASE_ERROR);
            return;
        }
    }

}

上面的代码将使我返回到view_profile页面，就像更新查询正常工作一样，但是，更新之前数据保持不变-不变。

编辑：在调试$statement之后执行之前，请执行以下操作：

PDOStatement Object
(
    [queryString] => UPDATE `profiles` SET `fullname`=?,`email`=?,`contact`=?,`post`=?, `photo`=?, `pdf`=? WHERE `pid`=?
)

Answer 1

此问题可能是传递的参数顺序错误，请按以下顺序尝试：

if($statement->execute([$fullname,$email,$contact,$post,$photo_to_db,$pdf_to_db,$pid]))

Answer 2

您使用错误的顺序将变量传递给execute方法。

...db->prepare("UPDATE `profiles` SET `fullname`=?,`email`=?,`contact`=?,`post`=?, `photo`=?, `pdf`=? WHERE `pid`=?");

接下来，您调用这些变量执行：

...->execute([$fullname,$email,$contact,$post,$pid, $pdf_to_db, $photo_to_db]))

最后3个应类似于$photo_to_db, $pdf_to_db, $pid。您传递了错误的pid，所以这就是为什么看不到更新结果的原因。

您还可以使用命名参数：http://php.net/manual/en/pdostatement.execute.php#example-1072

Answer 3

    $statement = $this->db->prepare("UPDATE `profiles` SET 
    `fullname`=?,`email`=?,`contact`=?,`post`=?, `photo`=?, `pdf`=? WHERE 
    `pid`=?");
     if($statement->execute([$fullname,$email,$contact,$post,$photo_to_db
     $pdf_to_db,$pid]))
     {
          ExitThis::send_to(URL.'profile/view_profile?id='.$pid);
       }
     else
    {
       array_push($this->errors, DATABASE_ERROR);
        return;
      }

在更新语句中删除$ pid并检查您的参数，请尝试以下代码

如果添加了用于更新图像和pdf的代码，则更新查询不起作用

3 个答案: