Removing the space from $data = explode("\n", $_POST['var']);

I have this code:

$data = explode("\n", $_POST['multiplekeywords']);

When I take $data and insert it into a database like:

foreach ($data as $keyword) {
 if (trim($keyword) != '') {
      $sql = "INSERT INTO listing (campaign_name,adgroup_name,keyword_name,domain,max_bid,phrase,exact) VALUES ('$campaign','$adgroup','$keyword','$domain','$bid','$phrase','$exact')";
        
      $result = mysql_query($sql, $connect) or die(mysql_error());
        echo mysql_error();
        echo "New Listing Added To Database <br />";
        }
        }
   }

It seems to ad an extra space at the end of the keyword value, at least for all the values besides the last, if i have 10 values values in that array, the first nine will have an extra space attached.  How could I remove this space?Start Free Trial