output rows to csv - php

Question

I have a script that successfully prints a header and rows in the terminal output, but when I try to do the same thing for a CSV output it fails and says it expects an array.
I want to try to get lined up for just a simple csv that would ideally open in excel with different columns
print("Frame,Group,Average Days,Total Units Sold,Total Placements\n");
//$file = fopen("contacts.csv","w");
foreach($groupedByFrame as $frame){
print($frame['frame'].','.$frame['group'].','.round($frame['avg'],3).','.$frame['qty'].','.$frame['placements']."\n");
//fputcsv($file,explode(',',$frame));
}
//fclose($file);

Answer 1

If you want to change the format (and order) of the $frame array, you could create another one:
$file = fopen("contacts.csv","w");
// header
$header = ['Frame','Group','Average Days','Total Units Sold','Total Placements'];
fputcsv($file, $header);
// data
foreach($groupedByFrame as $frame)
{
$array = [
$frame['frame'],
$frame['group'],
round($frame['avg'],3),
$frame['qty'],
$frame['placements']
];
fputcsv($file, $array);
}
fclose($file);
If you want to output the $frame directly, you could use:
$file = fopen("contacts.csv","w");
$header = ['Frame','Group','Average Days','Total Units Sold','Total Placements'];
fputcsv($file, $header);
foreach($groupedByFrame as $frame)
{
fputcsv($file, $frame);
}
fclose($file);

Answer 2

You don't need to explode the inner array, it's already an array.
Try this:
//print("Frame,Group,Average Days,Total Units Sold,Total Placements\n");
$file = fopen("contacts.csv","w");
foreach($groupedByFrame as $frame)
{
//print($frame['frame'].','.$frame['group'].','.round($frame['avg'],3).','.$frame['qty'].','.$frame['placements']."\n");
fputcsv($file,$frame);
}
fclose($file);