Save array to CSV (for php and WordPress)

save_array_to_csv.php

function save_data_to_file(){

// output headers so that the file is downloaded rather than displayed
header('Content-Type: text/csv; charset=utf-8');
header('Content-Disposition: attachment; filename=data.csv');

$output = fopen('php://output', 'w');

$data = array(
  array('text1', 'text2'),
  array('text1', 'text2')
);
foreach ($data as $item) {
    fputcsv($output, $item);
}
fclose($output);
exit();

}