Trouble with basic PHP commands in cobal

[Anon]

Hello, I run my site on a cobalt server and I am performing examples that I get from a PHP book that is based with Apache. I need to know if these 2 commands are functional with Cobalt:
command1----:mysql_num_rows($var);
command2----:mail($var1,$var2,$var3);

[Anon]

I haven't used PHP on a Cobalt server, but what is $var? It has to be the return value of mysql_query(). Are you doing that?

And mail() depends on your settings. You need to be running a SMTP server.

Diego