The following script will eat up all server memory in no time when being called using the CGI. Does not happen when using the PHP3 CGI. This is independent of calling unset() or not, it will eat up the memory just as fast.

<?
set_time_limit(0);
while(TRUE)
{
        $db_handle = mysql_connect("localhost", "user", "passwd");
        $result = mysql_db_query("db", "SELECT * FROM mytable", $db_handle);
        while($row = mysql_fetch_array($result))
                unset($row);
        mysql_free_result($result);
        mysql_close($db_handle);
}
?>