I found this script on a code site and borrowed it / modified it some.

This script is suppose to take the data from a table and let you download it as a excel / doc file, however I keep getting header errors.

This is the code :


<?php

//EDIT YOUR MySQL Connection Info:
$DB_Server = "localhost"; //your MySQL Server
$DB_Username = "xxxx"; //your MySQL User Name
$DB_Password = "xxxx"; //your MySQL Password
$DB_DBName = "xxxxx"; //your MySQL Database Name
$DB_TBLName = "value"; //your MySQL Table Name
//$DB_TBLName, $DB_DBName, may also be commented out & passed to the browser
//as parameters in a query string, so that this code may be easily reused for
//any MySQL table or any MySQL database on your server
//DEFINE SQL QUERY:
//you can use just about ANY kind of select statement you want -
//edit this to suit your needs!
$sql = "Select * from $DB_TBLName";
//Optional: print out title to top of Excel or Word file with Timestamp
//for whenheader("Content-Type: application/$file_type");
header("Content-Disposition: attachment; filename=database_dump.$file_ending");
header("Pragma: no-cache");
header("Expires: 0");
file was generated:
//set $Use_Titel = 1 to generate title, 0 not to use title
$Use_Title = 1;
//define date for title: EDIT this to create the time-format you need
$now_date = date('m-d-Y H:i');
//define title for .doc or .xls file: EDIT this if you want
$title = "Dump For Table $DB_TBLName from Database $DB_DBName on $now_date";
/*
Leave the connection info below as it is:
just edit the above.
(Editing of code past this point recommended only for advanced users.)
*/
//create MySQL connection
$Connect = @mysql_connect($DB_Server, $DB_Username, $DB_Password)
or die("Couldn't connect to MySQL:<br>" . mysql_error() . "<br>" . mysql_errno());
//select database
$Db = @mysql_select_db($DB_DBName, $Connect)
or die("Couldn't select database:<br>" . mysql_error(). "<br>" . mysql_errno());
//execute query
$result = @mysql_query($sql,$Connect)
or die("Couldn't execute query:<br>" . mysql_error(). "<br>" . mysql_errno());
//if this parameter is included ($w=1), file returned will be in word format ('.doc')
//if parameter is not included, file returned will be in excel format ('.xls')
if (isset($w) && ($w==0))
{
$file_type = "msword";
$file_ending = "doc";
}else {
$file_type = "vnd.ms-excel";
$file_ending = "xls";
}
//header info for browser: determines file type ('.doc' or '.xls')
header("Content-Type: application/$file_type");
header("Content-Disposition: attachment; filename=database_dump.$file_ending");
header("Pragma: no-cache");
header("Expires: 0");
/* Start of Formatting for Word or Excel */
if (isset($w) && ($w==1)) //check for $w again
{
/* FORMATTING FOR WORD DOCUMENTS ('.doc') */
//create title with timestamp:
if ($Use_Title == 1)
{
echo("$titlenn");
}
//define separator (defines columns in excel & tabs in word)
$sep = "n"; //new line character
while($row = mysql_fetch_row($result))
{
//set_time_limit(60); // HaRa
$schema_insert = "";
for($j=0; $j<mysql_num_fields($result);$j++)
{
//define field names
$field_name = mysql_field_name($result,$j);
//will show name of fields
$schema_insert .= "$field_name:t";
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);
$schema_insert .= "t";
print(trim($schema_insert));
//end of each mysql row
//creates line to separate data from each MySQL table row
print "n----------------------------------------------------n";
}
}else{
/* FORMATTING FOR EXCEL DOCUMENTS ('.xls') */
//create title with timestamp:
if ($Use_Title == 1)
{
echo("$titlen");
}
//define separator (defines columns in excel & tabs in word)
$sep = "t"; //tabbed character
//start of printing column names as names of MySQL fields
for ($i = 0; $i < mysql_num_fields($result); $i++){
echo mysql_field_name($result,$i) . "t";
}
print("n");
//end of printing column names
//start while loop to get data
while($row = mysql_fetch_row($result))
{
//set_time_limit(60); // HaRa
$schema_insert = "";
for($j=0; $j<mysql_num_fields($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);
//following fix suggested by Josue (thanks, Josue!)
//this corrects output in excel when table fields contain n or r
//these two characters are now replaced with a space
$schema_insert = preg_replace("/rn|nr|n|r/", " ", $schema_insert);
$schema_insert .= "t";
print(trim($schema_insert));
print "n";
}
}
?>


The problem is this:

I get a bunch of errors


Warning: Cannot modify header information - headers already sent by (output started at /home/webmesto/public_html/test/excel2.php:1) in /home/webmesto/public_html/test/excel2.php on line 49

Warning: Cannot modify header information - headers already sent by (output started at /home/webmesto/public_html/test/excel2.php:1) in /home/webmesto/public_html/test/excel2.php on line 50

Warning: Cannot modify header information - headers already sent by (output started at /home/webmesto/public_html/test/excel2.php:1) in /home/webmesto/public_html/test/excel2.php on line 51

Warning: Cannot modify header information - headers already sent by (output started at /home/webmesto/public_html/test/excel2.php:1) in /home/webmesto/public_html/test/excel2.php on line 52


I'm pretty sure the error is where the headers are processed here:

header("Content-Type: application/$file_type");
header("Content-Disposition: attachment; filename=database_dump.$file_ending");
header("Pragma: no-cache");
header("Expires: 0");

But I'm not sure whats wrong.

Would this be an issue with a security feature on the server?

Anyone have any ideas?? :)


Running PHP5 / Mysql 4.1
RHEL 5.

Thanks in advance!

When I had some errors, what I normally did was go to php.ini, change the config to display errors only. After that the scripts worked and never seemed to have problems.

I may be missing out something but at least the script runs without errors (or rather there are invisible).

changed php to show errors only, but same problem :(

I hate programming..don't even know why I'm doing this...lol

Warning: Cannot modify header information - headers already sent by (output started at /home/webmesto/public_html/test/excel2.php:1) in /home/webmesto/public_html/test/excel2.php on line 49
Headers are the initial information sent to the browser - you can't change them after you've started to display the page. The errors are telling you that you started to display the page in this file at line 1 - probably a space before the <?php tag. Don't you just love PHP? :)

LOL....

There were some funky hidden characters as you said before my <?php line.

They didn't show up in my editor, but I did a nano myfile.php and sure enough..there were about 4 really weird characters there.

script works now!

Thanks.

Thanks something new I had learn today! Been wondering about that for a long time. At least now I know the reasons. Thanks once again. And goodness I never opt to be a programmer :)

Headers are the initial information sent to the browser - you can't change them after you've started to display the page. The errors are telling you that you started to display the page in this file at line 1 - probably a space before the <?php tag. Don't you just love PHP? :)