$iDBConn = mysql_connect(...);
mysql_select_db(\"dbname\", $iDBConn);
$strQuery = \"select.. \";
$rstList = mysql_query($strQuery, $iDBConn);
$fp = fopen(\"your-file_name.txt\", \"w\");
while ($row = mysql_fetch_array($rstList)) {
fwrite($fp, $row[\"fieldone\"].\"\t\");
fwrite($fp, $row[\"fieldtwo\"].\"\t\");
fwrite($fp, \"\n\");
}
fclose($fp);
havent tested, but that should be close