CSV download Link help

[nepzap2]

Do any of you know how to make a download link that will download MySQL data as CSV

 

My code is below

 

<?php 

session_start();
include("../db_config.php");
include("functions.php");

if("getcsv" === $_GET['step']){

	$applicants = getAllApplicantInfo();
	echo "LAST NAME, FIRST NAME, ASSIGNED PI, PARTICIPATION YEAR, STUDENT RANK\n";
	while($row = mysql_fetch_array($applicants)){
		echo mysql_real_escape_string( $row['last_name'] ) . ", " . 
			 mysql_real_escape_string($row['first_name'] ) . ", " . 
			 mysql_real_escape_string($row['pi_first_name'] ) . " " . 
			 mysql_real_escape_string($row['pi_last_name'] ) . ", " . 
			 "n/a". ", " .
			 mysql_real_escape_string($row['total_points'] ) . "\n";
  		}
	return;

}

?>

 

any help is greatly appreciated

[rhodesa]

edit: Requires PHP 5.1+

 

try this:

<?php
   include("../db_config.php");
   include("functions.php");
   
   if("getcsv" === $_GET['step']){
      $applicants = getAllApplicantInfo();
      $out = fopen('php://output', 'w');
      //Header
      fputcsv($out, array('LAST NAME','FIRST NAME','ASSIGNED PI','PARTICIPATION YEAR','STUDENT RANK'));
      while($row = mysql_fetch_array($applicants)){
         fputcsv($out, array(
            $row['last_name'],
            $row['first_name'],
            $row['pi_first_name'],
            $row['pi_last_name'],
            "n/a",
            $row['total_points'],
         ));
      }
      fclose($out);
      return;
   }
?>

[nepzap2]

I pretty much just want to click on this link

 

<?php 

echo "<a href='SummerInternStatsCSVTEST.php'>Download Table</a>";

?>

 

Have it just show the download box

 

this is the function

 

<?php
function exportMysqlToCsv($table,$filename = 'export.csv')
{
$csv_terminated = "\n";
$csv_separator = ",";
$csv_enclosed = '"';
$csv_escaped = "\\";
$sql_query = "select * from $table";
// Gets the data from the database
$result = mysql_query($sql_query);
$fields_cnt = mysql_num_fields($result);
$schema_insert = '';
for ($i = 0; $i < $fields_cnt; $i++)
{
	$l = $csv_enclosed . str_replace($csv_enclosed, $csv_escaped . $csv_enclosed,
		stripslashes(mysql_field_name($result, $i))) . $csv_enclosed;
	$schema_insert .= $l;
	$schema_insert .= $csv_separator;
} // end for
$out = trim(substr($schema_insert, 0, -1));
$out .= $csv_terminated;
// Format the data
while ($row = mysql_fetch_array($result))
{
	$schema_insert = '';
	for ($j = 0; $j < $fields_cnt; $j++)
	{
		if ($row[$j] == '0' || $row[$j] != '')
		{
			if ($csv_enclosed == '')
			{
				$schema_insert .= $row[$j];
			} else
			{
				$schema_insert .= $csv_enclosed .
				str_replace($csv_enclosed, $csv_escaped . $csv_enclosed, $row[$j]) . $csv_enclosed;
			}
		} else
		{
			$schema_insert .= '';
		}
		if ($j < $fields_cnt - 1)
		{
			$schema_insert .= $csv_separator;
		}
	} // end for
	$out .= $schema_insert;
	$out .= $csv_terminated;
} // end while
header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
header("Content-Length: " . strlen($out));
// Output to browser with appropriate mime type, you choose 
header("Content-type: text/x-csv");
//header("Content-type: text/csv");
//header("Content-type: application/csv");
header("Content-Disposition: attachment; filename=$filename");
echo $out;
exit;
}
?>

 

and the actual file

 

<?php
$host = 'localhost'; // MYSQL database host adress
$db = 'test'; // MYSQL database name
$user = ''; // Mysql Datbase user
$pass = ''; // Mysql Datbase password
// Connect to the database
$link = mysql_connect($host, $user, $pass);
mysql_select_db($db);
require 'exportcsv.inc.php';
$table="applicants"; // this is the tablename that you want to export to csv from mysql.
exportMysqlToCsv($table);
?>

 

but I keep getting this:

 

 

Warning: Cannot modify header information - headers already sent by (output started at /usr/local/apache/vhosts/boycethompson.com/Summer/internship/exportcsv.inc.php:65) in /usr/local/apache/vhosts/boycethompson.com/Summer/internship/exportcsv.inc.php on line 50

Warning: Cannot modify header information - headers already sent by (output started at /usr/local/apache/vhosts/boycethompson.com/Summer/internship/exportcsv.inc.php:65) in /usr/local/apache/vhosts/boycethompson.com/Summer/internship/exportcsv.inc.php on line 51

Warning: Cannot modify header information - headers already sent by (output started at /usr/local/apache/vhosts/boycethompson.com/Summer/internship/exportcsv.inc.php:65) in /usr/local/apache/vhosts/boycethompson.com/Summer/internship/exportcsv.inc.php on line 53

Warning: Cannot modify header information - headers already sent by (output started at /usr/local/apache/vhosts/boycethompson.com/Summer/internship/exportcsv.inc.php:65) in /usr/local/apache/vhosts/boycethompson.com/Summer/internship/exportcsv.inc.php on line 56

[rhodesa]

Hum...i don't see anything wrong with it. Those errors come from content being outputted before the header() function...even a single space character. Check all your files for any extra whitespace before/after the php tags.

 

also, if right before your first header() function, if you put this:

print "DONE";exit;

reload the page and do a View Source...is there anything before the DONE word (including any space characters)