使用PHP将生成的Excel文件保存到服务器

时间:2018-11-14 08:42:20

标签: php excel

我正在尝试将生成的Excel工作表保存到服务器。它可以保存,但Excel工作表为空。我正在使用以下代码。

$sql = "select name, email from agencies";

$result = mysqli_query($conn, $sql);
$resultRows = mysqli_fetch_assoc($result);    

if($resultRows>0){
$sep = "\t"; //tabbed character

//while($rowheading = mysqli_fetch_field($result)) { echo $rowheading->name . $sep; }
while($finfo = $result->fetch_field())
{
  printf($finfo->name . $sep);
}

print("\n");
while($row = mysqli_fetch_row($result)){
    $schema_insert = "";
    for($j=0; $j<mysqli_num_fields($result);$j++){
        if(!isset($row[$j]))
            $schema_insert .= "NULL".$sep;
        elseif ($row[$j] != "")
            $schema_insert .= "$row[$j]".$sep;
        else
            $schema_insert .= "".$sep;
    }
    $schema_insert = str_replace($sep."$", "", $schema_insert);
    $schema_insert = preg_replace("/\r\n|\n\r|\n|\r/", " ", $schema_insert);
    $schema_insert .= "\t"; 
    print(trim(str_replace(',', " ", $schema_insert)));
    print "\n";
}


    file_put_contents('/var/www/html/myfiles/public/core/enquiry_mail_sms/file/Report.xls', $schema_insert);
}

mysqli_close($conn);

我不了解出了什么问题。有人可以指导我吗?

2 个答案:

答案 0 :(得分:0)

来自docs(重点是我):

  

如果filename不存在,则创建文件。否则,除非设置了FILE_APPEND标志,否则现有文件将被覆盖

(假设您实际上是说您仅获得 last 记录,而不是 first 。)

答案 1 :(得分:0)

问题是您在循环的每次迭代中都覆盖了文件,因此现在在文件中您只会看到最后一条记录。

为避免将file_put_contents()移出循环

$sql = "select name, email from agencies";

$result = mysqli_query($conn, $sql);
$resultRows = mysqli_fetch_assoc($result);    

if($resultRows>0){
$sep = "\t"; //tabbed character

//while($rowheading = mysqli_fetch_field($result)) { echo $rowheading->name . $sep; }
while($finfo = $result->fetch_field())
{
  printf($finfo->name . $sep);
}

print("\n");
$excelContent = '';
while($row = mysqli_fetch_row($result)){
    $schema_insert = "";
    for($j=0; $j<mysqli_num_fields($result);$j++){
        if(!isset($row[$j]))
            $schema_insert .= "NULL".$sep;
        elseif ($row[$j] != "")
            $schema_insert .= "$row[$j]".$sep;
        else
            $schema_insert .= "".$sep;
    }
    $schema_insert = str_replace($sep."$", "", $schema_insert);
    $schema_insert = preg_replace("/\r\n|\n\r|\n|\r/", " ", $schema_insert);
    $schema_insert .= "\t";
    $excelContent .= $schema_insert

    print(trim(str_replace(',', " ", $schema_insert)));
    print "\n";
}


    file_put_contents('/var/www/html/myfiles/public/core/enquiry_mail_sms/file/Report.xls', $excelContent);
}

mysqli_close($conn);