Is connection string necessary in mysql_query queries?

[bunner_bob]

I see queries taking two forms:

$result = mysql_query("SELECT * FROM table");

and

$result = mysql_query("SELECT * FROM table", $db);
where $db = a specified database connection string.

Both seems to work just fine, at least in my experience. Why would or wouldn't you want/need to include the "$db" string in your queries?

• Bob

[Steveo31]

Dunno. I would guess for multiple connections, but I haven't heard of the need for such a thing...