MYSQL查询后使用phpexcel从excel中删除字段

Question

我正在使用 PHPExcel 从 MYSQL 数据库中导出数据并将其导入到 excel 文件中。

我有一个看起来像这样的数据库（这也是我使用 PHPExcel 生成的 excel 文件当前的样子）：

======================================================
|           Question                  |   Answer     |
=========+===========+===============================|
| Do you listen to music?             |    YES       |            
|----------------------------------------------------|
| Who is your favorite music artists? | Justin Beiber| 
|----------------------------------------------------|
| <p> Select an Answer<p>             |              | 
|----------------------------------------------------|
|Are you a Male or female             |      M       | 
|----------------------------------------------------|

我希望我的 excel 文件如下所示：

======================================================
|           Question                  |   Answer     |
=========+===========+===============================|
| Do you listen to music?             |    YES       |            
|----------------------------------------------------|
| Who is your favorite music artists? | Justin Beiber| 
|----------------------------------------------------|
|Are you a Male or female             |      M       | 
|----------------------------------------------------|

我正在使用此代码：

$objPHPExcel = new PHPExcel();

$col = 1; 
while($row_data = mysql_fetch_assoc($result)) {
    $row = 1;
    if ($col == 1) {
        $row_headings = array_keys($row_data);
        foreach($row_headings as $value) {
            $objPHPExcel->getActiveSheet()->setCellValueByColumnAndRow($col, $row, $value);
            $row++;
        }
        $row = 1;
        $col++;
    }
    foreach($row_data as $value) {
      if (!strstr('<p>', $value)){
        $objPHPExcel->getActiveSheet()->setCellValueByColumnAndRow($col, $row, $value);

    $row++;
         }
    }
    $col++;
}

Answer 1

一种选择是在执行 SQL 查询时排除 <p> Select an Answer<p>，您将选择列和行，然后从您的选择中选择 DELETE WHERE question = "<p> Select an Answer<p> "

或者如果列Anwser的值为null或""，而Question的值为<p> Select an Answer<p>，那么你也可以说：

if($value !== null)
{
  // Output...
} 

例如：

$objPHPExcel = new PHPExcel();

$col = 1; 
while($row_data = mysql_fetch_assoc($result)) {
    $row = 1;
    if ($col == 1) {
        $row_headings = array_keys($row_data);
        foreach($row_headings as $value) {
            $objPHPExcel->getActiveSheet()->setCellValueByColumnAndRow($col, $row, $value);
            $row++;
        }
        $row = 1;
        $col++;
    }
    foreach($row_data as $value) {
        if($value !== null || $value !== '')
        {
         $objPHPExcel->getActiveSheet()->setCellValueByColumnAndRow($col, $row, $value);
         $row++;
        }
    }
    $col++;
}

或者您可以简单地删除包含 <p> Select an Answer<p> 的行，除非您需要它们。