change separator "," in ";" from Mysqli in .csv - php

Question

This code export one file.csv and separated the columns with ","
I have another little problem with this code. Regional settings of my PC are not on the US but on Romanian. This means that with the US separation is done by "," and in Romanian by ";" and Excel takes regional settings of the PC.
What can I do to code to make separation by ";" ?
Thank you!
<?php
// call export function
exportMysqlToCsv('export_csv.csv');
// export csv
function exportMysqlToCsv($filename = 'export_csv.csv')
{
$conn = dbConnection();
// Check connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
$sql_query = "SELECT id, firstname, lastname FROM MyGuests";
// Gets the data from the database
$result = $conn->query($sql_query);
$f = fopen('php://temp', 'wt');
$first = true;
while ($row = $result->fetch_assoc()) {
if ($first) {
fputcsv($f, array_keys($row));
$first = false;
}
fputcsv($f, $row);
} // end while
$conn->close();
$size = ftell($f);
rewind($f);
header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
header("Content-Length: $size");
// Output to browser with appropriate mime type, you choose ;)
header("Content-type: text/x-csv");
header("Content-type: text/csv");
header("Content-type: application/csv");
header("Content-Disposition: attachment; filename=$filename");
fpassthru($f);
exit;
}
// db connection function
function dbConnection(){
$servername = "localhost";
$username = "root";
$password = "";
$dbname = "myDB";
// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);
return $conn;
}
?>

Answer 1

You have to use like below, you can refer put comma as separator in export to CSV in php for more.
$delimiter = ',';
$enclosure = '"';
$f = fopen('php://temp', 'wt');
$first = true;
while ($row = $result->fetch_assoc()) {
fputcsv($f, $row, $delimiter, $enclosure);
}