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exporting a table to a csv using mysqli and array

Thread began 3/12/2016 12:32 pm by Christopher West | Last modified 3/14/2016 7:37 pm by Ray Borduin | 230 views | 3 replies |

Christopher WestCommunity Expert

exporting a table to a csv using mysqli and array

Hi there, I an attempting to export a field name from a table to a .csv file, however I get the following error inside the .csv file:

<b>Fatal error</b>: Call to a member function atEnd() on array in <b>C:\xampp\htdocs\armadillo\admin\newsletter-export.php</b> on line <b>18</b><br />

here is my code:

php:
<?php require_once('../Connections/ecartdb.php'); ?>

<?php 
require_once('../webassist/mysqli/rsobj.php'); ?>
<?php
$rsNewsletter 
= new WA_MySQLi_RS("rsNewsletter",$ecartdb,1);
$rsNewsletter->setQuery("SELECT NewsLetterEmail FROM newsletter WHERE NewsLetterOptIn = 1");
$rsNewsletter->execute();

$rsNewsletter = array();
?>
<?php

$filename 
"emails.csv";
$fp fopen('php://output''w');

    
header('Content-type: application/csv');
header('Content-Disposition: attachment; filename='.$filename);
while(!
$rsNewsletter->atEnd()) {
    
fputcsv($fp$rsNewsletter[0]);
 
$rsNewsletter->moveNext();
}
$rsNewsletter->moveFirst(); //return RS to first record
exit;
?>



Chris

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Ray BorduinWebAssist

It is because you are naming your Array the same thing as your recordset and effectively overwriting it. You will want to use unique names for your recordset and array.

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Christopher WestCommunity Expert

Hmm ok, just learning more about this. I actually got this code working (not using webassist code) However I would like to convert to your mysqli server behaviours for code consistency throughout my project (I know I know if it aint broke why fix it). But its a good learning curve.

from the following working code, I cannot just simply replace the mysqli_query with a webassist recordset. And I cannot replace the while loop with a webassist version. Any pointers?

I was think since in the working code there is a $row = mysqli_fetch_assoc (without looking it up on Google this is basically an array counter) So therefore to get a webassist version working I could use: $row = array($rows);

php:
<?php require_once('../Connections/ecartdb.php'); ?>

<?php
header
('Content-Type: text/csv; charset=utf-8');
header('Content-Disposition: attachment; filename=emails.csv');

$output fopen('php://output''w');

$rows mysqli_query($ecartdb'SELECT NewsLetterEmail FROM newsletter');

while (
$row mysqli_fetch_assoc($rows)) {
fputcsv($output$row);
}
fclose($output);
    
?>



ok I got it working, is this the logical way of coding it:

php:
<?php require_once('../Connections/ecartdb.php'); ?>

<?php 
require_once('../webassist/mysqli/rsobj.php'); ?>
<?php
header
('Content-Type: text/csv; charset=utf-8');
header('Content-Disposition: attachment; filename=emails.csv');

$output fopen('php://output''w');

$rows = new WA_MySQLi_RS("rows",$ecartdb,0);
$rows->setQuery("SELECT NewsLetterEmail FROM newsletter");
$rows->execute();

while(!
$rows->atEnd()) {
    
    
$row = array($rows->getColumnVal("NewsLetterEmail"));


fputcsv($output$row);

$rows->moveNext();
}
$rows->moveFirst(); //return RS to first record
?>
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Ray BorduinWebAssist

Yes that is fine.

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