PHP to excel problem

[nerd99]

Hi,

 

I am attempting to export some table data to an excel spreadsheet. Below is the code I am working with.

 

<?php 

include('includes/admin_session.php');

require_once("includes/connection.php"); 

function cleanData(&$str) {

  $str = preg_replace("/\t/", "\\t", $str);
  $str = preg_replace("/\r?\n/", "\\n", $str);

  if(strstr($str, '"')) $str = '"' . str_replace('"', '""', $str) . '"';

}
// file name for download
$filename = "student_list_" . date('Ymd') . ".xls";

header("Content-Disposition: attachment; filename=\"$filename\"");
header("Content-Type: application/vnd.ms-excel");

$flag = false;

$result = mysqli_query($connection,"SELECT * FROM students ORDER BY tutor") or die(mysqli_error($connection));

while(false !== ($row = mysqli_fetch_assoc($result))) {
  if(!$flag) { // display field/column names as first row
    echo implode("\t", array_keys($row)) . "\n";
    $flag = true;
  }
  array_walk($row, 'cleanData');
  echo implode("\t", array_values($row)) . "\n";
  
  }
  
  ?>

 

It is exporting the rows as requested and I am able to open the file in excel....however...when downloading it becomes stuck on a loop and continues to download over 20mb of nothing. As a result I am forced to stop the download. When I open my excel file, below my table data is the following error, over and over and over and over!

<br />

<b>Warning</b>:  array_walk() [<a href='function.array-walk'>function.array-walk</a>]: The argument should be an array in <b>/home/inschool/public_html/student_list_export.php</b> on line <b>33</b><br />

<br />

<b>Warning</b>:  array_values() [<a href='function.array-values'>function.array-values</a>]: The argument should be an array in <b>/home/inschool/public_html/student_list_export.php</b> on line <b>34</b><br />

<br />

<b>Warning</b>:  implode() [<a href='function.implode'>function.implode</a>]: Invalid arguments passed in <b>/home/inschool/public_html/student_list_export.php</b> on line <b>34</b><br />

 

Any help on this would be awesome