When I try to get dump of my table (about 5.000.000 records) cause memory overflow.
When I check problem, I found, that php always use mysql_store_result(), and never mysql_use_result() 
(from C API).
At mysql (comand line tool) I can use option -q. which forse use mysql_use_result().
I need someting like in php. 
Maybe as additionall argument in mysql_query,
maybe as constant in configuation file, maybe other.


<?PHP
 mysql_connect("localhost","...","...");
 mysql_select_db("...");
 $res=mysql_query("select * from big_table");
 $row=mysql_fetch_row($res);
 echo $row[0];
 mysql_free_result($res);
?>