write utf-8 characters to file with fputcsv in php
Try this also:
$df = fopen($filepath, 'w');
$array = array($coupon->code, $discount->label);
$array = array_map("utf8_decode", $array);
fputcsv($df, $array);
Try this:
$df = fopen($filepath, 'w');
fprintf($df, chr(0xEF).chr(0xBB).chr(0xBF));
fputcsv($df, array($coupon->code, $discount->label));
the line fprintf($df, chr(0xEF).chr(0xBB).chr(0xBF));
writes file header for correct encoding.
If you want make a UTF-8 file for excel, use this simple solution:
$fp = fopen($filename, 'w');
//add BOM to fix UTF-8 in Excel
fputs($fp, $bom =( chr(0xEF) . chr(0xBB) . chr(0xBF) ));
See the original answer here on the official PHP page.