[PHP] Best way of "casing"?

[Calon]

How would I stop users registering the same name but within different casing.

I've done it on Nivade, but I don't think I'm using the best way, the way I'm usnig is changing the username (in registration) to lowercase with strtolower then echoing ucwords which changes them to uppercase, but shift key rapes.

What way is the best, or is this the only way?

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[Johno]

I use mysql_num_rows and that works fine?

$checkname = mysql_query("SELECT username FROM users WHERE username='$username'");
$checkname= mysql_num_rows($checkname);
if($checkname>0){
echo 'This username is currently in use!';  

Works fine and it doesn't matter if one is all in lowercase, uppercase etc? or at least it certainly works fine for me?

Sorry if this isn't what you mean!

[Decode]

For my site I have 2 rows, 1 called username which is there username as they typed it when they signed up (case sensative) and the other is called usernameid and it is there username capitalised (use strupper()). It makes it a lot eaysier to stop duplicate usernames then.

[Dentafrice]

I just do the same way Johno does, never allows duplicates.

[Calon]

@ Dentafrice / Johnno!

I'd usually close it with the curly bracket.. if I was you then.

[Johno]

Well yeah of course lol

Just copied it straight from something I was working on so I left out the:

} else {  

But yeah lol