looping through a $_POST variable

I am trying to loop through a $_POST variable. It comes from a text area and it will have data like many email address or just one listed with a space or on a new line. I can't seam to get the data to extract properly. I have tried this below $array = explode(' ', $_POST['emails']); foreach ($array as $value) { $sql = "SELECT id FROM contacts where emailaddress = '$value' AND members_id = '$memberid'"; $sql_result=safe_query($sql); while ($row=mysql_fetch_array($sql_result)){ $id = $row["id"]; $sql1="UPDATE contacts SET emailstatus ='Unsubscribed' WHERE id = '$id'"; safe_query($sql1); }}