I have a short script that displays the number of rows from a mysql_query using mysql_numrows. It lives in my windows taskbar and refreshes every hour while I'm on the computer.

Today my hosting company upgraded to PHP 4.0.6 from 4.0.5 and the mysql_numrows is no longer returning a value. Using mysql_num_rows solves the problem.

A basic version of my script is:
<?php
$result = MYSQL_QUERY("...");
$rows = MYSQL_NUMROWS($result);
echo "$result</b>";
?>

I do not control the webserver, so the hosting company may have used different command line options when they upgraded.