putcsv formatting wrong when result is from pdo - php

Question

I am trying to import data from a db via pdo and output the results to a csv file. I am able to output to a screen correctly but the formatting in the csv is wild, double names and no '\n'
<?php
require_once('auth.php');
$conn = new PDO("mysql:host=localhost;dbname=$dbname", $username, $pw);
if (($handle = fopen("nameList2.txt", "r")) !== FALSE) {
while (($data = fgetcsv($handle, 1000, " ")) !== FALSE) {
$firstname = $data[0];
$lastname = $data[1];
$stmt = $conn->prepare("SELECT * FROM list WHERE FName = :firstname AND LName = :lastname");
$stmt->bindParam(':firstname', $firstname);
$stmt->bindParam(':lastname', $lastname);
$stmt->execute();
$result = $stmt->fetchAll();
//var_dump($firstname);
//var_dump($lastname);
//var_dump($result);
$fp = fopen('file.csv', 'w');
foreach($result as $chunk){
echo $chunk[4]." ".$chunk[6]." ".$chunk[7]." ".$chunk[10]." ".$chunk[11]."".$chunk[12]." ".$chunk[13]." ".$chunk[18]." ".$chunk[19]." ".$chunk[20]."<br />";
fputcsv($fp, $chunk);
}
fclose($fp);
}
fclose($handle);
//fclose($fp);
}
?>

Answer 1

You are feeding fputcsv bad data, so it's giving you bad output. Specifically, fetchAll retrieves each row as an array with both numeric and string keys, so each value appears twice.
Fix this by setting the fetch mode appropriately, for example
$result = $stmt->fetchAll(PDO::FETCH_NUM);
It's unclear what the problem with the line endings is -- you don't say, and I can't tell from the screenshot. What is certain is that fputcsv writes a single line feed as the line termination character. While the vast majority of programs will correctly detect and handle these Unix-style line endings, there are some others (e.g. Notepad) that won't.

Answer 2

Your problem with double names is because you doesn't use the method fetchAll() right:
you get the names twice in the $result.
Use that:
$result = $stmt->fetchAll(PDO::FETCH_ASSOC);
To fix the problem with \n try
ini_set('auto_detect_line_endings', true);