Convert a single column of values into a comma seperated list

[eluser]johnwbaxter[/eluser]
Hmm that does not seem to work unfortunately.

What i've got thus far is (with your help from another post!):

Code:

$temp_csv = $_FILES['userfile']['tmp_name'];
unlink($temp_csv);
                
$lines = file($temp_csv);

$jeff = implode(',',$lines);
                
echo $jeff;