function best_odbc_num_rows($r1) {
ob_start(); // block printing table with results
(int)$number=odbc_result_all($r1);
ob_clean(); // block printing table with results
return $number;
}
Above is the best way to count if you are not using something like IBM Netezza and ODBC and not doing more than 100000ish records, otherwise even this method will run out of memory.
IBM Netezza and ODBC will give you counts matching the prefetch setting in the odbc.ini file :( the default is 256 so watch out because it is accurate until that number.
