为什么我在将 html 页面导出到 word 时出现错误？
我在尝试添加表格的新行时遇到错误，一切正常，我可以将我的 html 页面导出到 MS Word。
我收到这样的错误
Warning: Cannot modify header information - headers already sent by (output started at C:\xampp\htdocs\test\exportword2.php:216) in C:\xampp\htdocs\test\exportword2.php on line 217
Warning: Cannot modify header information - headers already sent by (output started at C:\xampp\htdocs\test\exportword2.php:216) in C:\xampp\htdocs\test\exportword2.php on line 218
Warning: Cannot modify header information - headers already sent by (output started at C:\xampp\htdocs\test\exportword2.php:216) in C:\xampp\htdocs\test\exportword2.php on line 219
Warning: Cannot modify header information - headers already sent by (output started at C:\xampp\htdocs\test\exportword2.php:216) in C:\xampp\htdocs\test\exportword2.php on line 220
这是我的代码
<tr>
<td>13. </td>
<td>Upah Pekerja</td>
<td>:</td>
<td>Minimum</td>
<td colspan="4">Rp. 100000</td>
</tr>
<tr>
<td></td>
<td></td>
<td>:</td>
<td>Maximum</td>
<td colspan="4">Rp. 100000</td>
</tr>
<tr>
<td></td>
<td>Upah Pekerja Harian</td>
<td>:</td>
<td>Minimum</td>
<td colspan="4">Rp. 100000</td>
</tr>
<tr>
<td></td>
<td></td>
<td>:</td>
<td>Maximum</td>
<td colspan="4">Rp. 100000</td>
</tr>
<tr>
<td>14.</td>
<td>Sistem Hubungan Kerja</td>
<td colspan="6">:</td>
</tr>
<tr>
<td></td>
<td>a. Untuk Waktu Tertentu</td>
<td colspan="6">: 3 Orang</td>
</tr>
<tr>
<td></td>
<td>b. Untuk Waktu Tidak Tertentu</td>
<td colspan="6">: 3 Orang</td>
</tr>
</table>
我已经完成导出，直到我添加新的表行，我收到上面的错误
哔哔one1回答
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aluckdog
请参阅文档：header() 必须在发送任何实际输出之前调用，无论是通过正常的 HTML 标签、文件中的空行还是从 PHP 发送。使用 include、require、函数或其他文件访问函数读取代码，并在调用 header() 之前输出空格或空行是一个非常常见的错误。使用单个 PHP/HTML 文件时也存在同样的问题。<?php// header must be before any sent output header("Content-Type: application/vnd.msword");header("Expires: 0");header("Cache-Control: must-revalidate, post-check=0, pre-check=0");header("content-disposition: attachment;filename=hasilekspor.doc"); ?><html>...</html>
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