Need Table headings added to exported CSV file - php

Question

I have a script that takes a SQL Statement and puts the query result into a CSV file. Right now it only the rows of the table, I want it to Put the headings of the table at the top. How would I do that with this current script?
Script...
<?php
include 'connect.php';
header('Content-Type: text/csv; charset=utf-8');
header('Content-Disposition: attachment;filename="export.csv"');
header('Cache-Control: max-age=0');
$fpcsv = fopen('php://output', "a+");
$sqlstatement = $_GET['sqlstatement'];
$exportcsv_q = mysql_query($sqlstatement);
if (#mysql_num_rows($exportcsv_q) > 0) {
$campos = mysql_num_fields($exportcsv_q);
while ($exportcsv_r = mysql_fetch_row($exportcsv_q)) {
fputcsv($fpcsv, $exportcsv_r);
}
}
exit;
?>
If anyone out there has a mysqli version of this I would love to be able to switch this over.

Answer 1

First, the answer to your question: output the headers before your while loop:
if (#mysql_num_rows($exportcsv_q) > 0) {
// output headers here
fwrite($fpcsv, "header1,header2,foo,bar,..."); // <-- like this
// if you want, you could do it this way:
// fputcsv($fpcsv, array("header1", "header2", ...));
$campos = mysql_num_fields($exportcsv_q);
while ($exportcsv_r = mysql_fetch_row($exportcsv_q)) {
fputcsv($fpcsv, $exportcsv_r);
}
}
If you want to have the headers even if there is no data, just move that line outside your if block, as well.
Second, yes, you should stop using mysql_*; the mysql_* functions are outdated, deprecated, and insecure. Use MySQLi or PDO instead. How to do that is too broad for a single question here. If you get stuck on some aspect of it, ask a new question about that.
Third, swallowing/suppressing errors with # is considered bad practice and can lead to unexpected results. Use a proper try { ... } catch (...) {...} block instead so you can handle/log/report the error as needed.