Question

我有一个关于HTML / PHP的表，它从mySQL中提取数据。请参阅此link。例如，请搜索此货件代码以获得表格内的结果： 42-7278954 。

之后，我想将结果导出到excel（你也可以看到那里的按钮）。

下面是我的表格代码（我删除了一些列以缩短代码）：

$body = "";

$display =  "<table class='table_searchshipment' id='table_searchshipment' cellpadding='0' cellspacing='0' border='0'>";

            echo $display;
            $body .= $display;

            $display  = "<thead>
                        <tr>
                          <th>CN No.</th>
                          <th>Doc No.</th>
                        </tr>
                      </thead>";
            echo $display;
            $body .= $display;  

            while($row = mysqli_fetch_array($result)) {
                $CN_no= $row['CN_no'];
                $doc_no= $row['doc_no'];

                $display  = "<tr>
                        <td>".$CN_no."</td>
                        <td>".$doc_no."</td>
                      </tr>";
               echo $display;
               $body .= $display;
            }

            $display  = "</table>";
            echo $display;
            $body .= $display;
            $body = htmlspecialchars($body);

            echo '<form action = "setheader" method = "post">
                    <input type = "hidden" name = "body" value = "<?php echo $body ; ?>">
                <input type = "submit" name = "submit" Value = "Export to excel">
            </form>'; 

            if(isset($_POST['submit'])){ 
                    $body = $_POST['body'];
                    setHeader("export.xls");

                    echo $body;
                }

在控制器中，我创建了函数setheader：

public function setheader($excel_file_name)//this function used to set the header variable
{   
    header("Content-type: application/octet-stream");//A MIME attachment with the content type "application/octet-stream" is a binary file.
    //Typically, it will be an application or a document that must be opened in an application, such as a spreadsheet or word processor. 
    header("Content-Disposition: attachment; filename=$excel_file_name");//with this extension of file name you tell what kind of file it is.
    header("Pragma: no-cache");//Prevent Caching
    header("Expires: 0");//Expires and 0 mean that the browser will not cache the page on your hard drive
   }

出现下载弹出窗口，但只下载＆＃34; setheader＆＃34;包含错误通知的文件。请看here。

Answer 1

首先，

此行需要更改：

echo '<form action = "setheader" method = "post">
        <input type = "hidden" name = "body" value = "<?php echo $body ; ?>">
    <input type = "submit" name = "submit" Value = "Export to excel">
</form>';

为：

echo '<form action = "setheader" method = "post">
        <input type = "hidden" name = "body" value = "'.$body.'">
    <input type = "submit" name = "submit" Value = "Export to excel">
</form>';

其次，$body = htmlspecialchars($body);很可能返回一个空字符串。

来自PHP Docs

如果输入字符串中包含无效的代码单元序列给定编码将返回一个空字符串，除非设置了ENT_IGNORE或ENT_SUBSTITUTE标志。

不知道数据库中有哪些数据，很难进一步测试。

但你可以试试：

$body = htmlspecialchars($body, ENT_QUOTES | ENT_SUBSTITUTE, 'UTF-8');看看它是否解决了这个问题。

将表格HTML-PHP导出/下载到Excel文件

1 个答案: