Here is the relevant part:
$n = '\n';
$File = "lead_maintain/process.txt";
$Handle = fopen($File, 'a');
$Data = $oID . " " . $XML_array['Response']['MFSTextID']['#text'] . $n;
fwrite($Handle, $Data);
$Data = $rpieces . $n . $n;
fwrite($Handle, $Data);
print "Data Written To Process";
fclose($Handle);