sha1でいいのか?とりあえず、動く。
$sql = sprintf("INSERT INTO testmembers SET name='%s', email='%s', password='%s',created='%s'", mysql_real_escape_string($_POST[name]), mysql_real_escape_string($_POST[email]), sha1(mysql_real_escape_string($_POST[password])), date('Y-m-d H:i:s') ); mysql_query($sql) or die(mysql_error());