Question

我目前的代码：

<?php

  /** PHPExcel */
  require_once '../Classes/PHPExcel.php';

  /** PHPExcel_IOFactory */
  require_once '../Classes/PHPExcel/IOFactory.php';

  // Create new PHPExcel object
  $objPHPExcel = new PHPExcel();

  // Set properties
  $objPHPExcel->getProperties()->setCreator("Maarten Balliauw")
                               ->setLastModifiedBy("Maarten Balliauw")
                               ->setTitle("Office 2007 XLSX Test Document")
                               ->setSubject("Office 2007 XLSX Test Document")
                               ->setDescription("Test document for Office 2007 XLSX, generated using PHP classes.")
                               ->setKeywords("office 2007 openxml php")
                               ->setCategory("Test result file");

  $result = 'select * from table1';

  for($i=0;$i<count($result);$i++) {

    $result1 = 'select * from table2 where table1_id = ' . $result[$i]['table1_id'];

    for ($j=0;$j<count($result1);$j++) {
      $objPHPExcel->setActiveSheetIndex(0)->setCellValue('A' . $j, $result1[$j]['name']);
    }

    // Set active sheet index to the first sheet, so Excel opens this as the first sheet
    $objPHPExcel->setActiveSheetIndex(0);

    // Save Excel 2007 file
    $objWriter = PHPExcel_IOFactory::createWriter($objPHPExcel, 'Excel2007');
    $objWriter->save(str_replace('.php', '.xlsx', __FILE__));

    // Echo done
    echo date('H:i:s') . " Done writing file.\r\n";       
  }

?>

上面的代码执行并保存文件夹中没有.xlsx个文件，但我得到的问题是在所有保存的excel文件中执行的count(result1)循环中最大for

Answer 1

在深入研究之前，有一点是明确的

您还没有执行$ result的查询，也没有获取它，而且在$ result1查询中你正在使用它，这是不可能的，

$ result1

存在同样的问题

您可以使用：

$result = mysql_query('select * from table1');
while($fetch_result=mysql_fetch_array($result))
{
    $result2 = mysql("select * from table2 where table1_id = '".$fetch_result['table1_id']."'");

   while($fetch_result2=mysql_fetch_array($result2)
   {
    --your code--

但最好是编写JOIN而不是这两个查询

Answer 2

您需要mysql_num_rows - http://php.net/manual/en/function.mysql-num-rows.php

$q = 'select * from table1';
$res = mysql_query($q);
$count = mysql_num_rows($result);

for ($j=0;$j<$count;$j++) {
    #code here
}

您可能还想查看mysql_fetch_assoc

PHPExcel写Excel并保存到服务器？

2 个答案: