export-csv.php
$filename = "export"
header("Content-type: text/csv");
header("Content-Disposition: attachment; filename={$filename}.csv");
header("Pragma: no-cache");
header("Expires: 0");
outputCSV($array);
function outputCSV($data) {
$outputBuffer = fopen("php://output", 'w');
foreach($data as $val) {
fputcsv($outputBuffer, $val);
}
fclose($outputBuffer);
}