如果用户导入 excel 文件，我想更新整个 MySQL 表数据

编程问答 2022-05-31

问题描述

我必须创建可以上传excel文件并转换为MysqL数据库的页面。问题是我想在用户导入 excel 文件（替换表中的数据）时更新整个表数据，而不是插入新数据。这是我的代码

<?PHP
if (isset($_POST["import"])) {

    $allowedFileType = [
        'application/vnd.ms-excel','text/xls','text/xlsx','application/vnd.openxmlformats-officedocument.spreadsheetml.sheet'
    ];

    if (in_array($_FILES["file"]["type"],$allowedFileType)) {

        $targetPath = 'uploads/' . $_FILES['file']['name'];
        move_uploaded_file($_FILES['file']['tmp_name'],$targetPath);

        $Reader = new \PHPOffice\PHPSpreadsheet\Reader\Xlsx();

        $spreadSheet = $Reader->load($targetPath);
        $excelSheet = $spreadSheet->getActiveSheet();
        $spreadSheetAry = $excelSheet->toArray();
        // print_r($spreadSheetAry); exit;
        $sheetCount = count($spreadSheetAry);

        for ($i = 1; $i <= $sheetCount; $i++) {
            $customer_note = "";
            if (isset($spreadSheetAry[$i][0])) {
                $customer_note = $MysqLi->real_escape_string($spreadSheetAry[$i][0]);
            }
            // echo 'customer_note === '.$customer_note."<br>";

            $customer_username = "";
            if (isset($spreadSheetAry[$i][1])) {
                $customer_username = $MysqLi->real_escape_string($spreadSheetAry[$i][1]);
            }
            // echo 'customer_username === '.$customer_username."<br>";

            $item_name = "";
            if (isset($spreadSheetAry[$i][3])) {
                $item_name = $MysqLi->real_escape_string($spreadSheetAry[$i][3]);
            }
            // echo 'item_name === '.$item_name."<br>";

            $quantity = "";
            if (isset($spreadSheetAry[$i][3])) {
                $quantity = $MysqLi->real_escape_string($spreadSheetAry[$i][4]);
            }
            // echo 'quantity === '.$quantity."<br>";



            if (
                !empty($customer_username) || !empty($item_name)
                || !empty($quantity)
            ) {
                $query = "INSERT INTO orders(customer_username,item_name,quantity,customer_note)
                VALUES ('$customer_username','$item_name','$quantity','$customer_note')";
                //    echo 'query === '.$query; exit;
                if ($MysqLi->query($query) === TRUE) {
                    $type = "success";
                    $message = "Excel Data Imported into the Database";
                } else {
                    $type = "error";
                    $message = "Problem in Importing Excel Data";
                }
            }
        }
    } else {
        $type = "error";
        $message = "Invalid File Type. Upload Excel File.";
    }
}

我必须创建可以上传excel文件并转换为MysqL数据库的页面。问题是我想在用户导入 excel 文件（替换表中的数据）时更新整个表数据，而不是插入新数据。 我应该怎么办？提前致谢

解决方法

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import-from-excelmysql