Username Regular Expression PCRE Help

[Neutral Singh]

i am presently using: ^[A-Z0-9 ]+$
which means: Alphanumeric characters including space

Now, i want an expression where besides above condition, nobody is allowed to register with numeric only username.

e.g.

username:
abcdef is perfectly fine!
abc123 is perfectly fine!

but username:
123456 should not be allowed!

What would be the regular expression?

Thanks

[Nirjonadda]

I am also still looking for it, Anyone help please.

[kh99]

Well, you could use this:

[^0-9]

which just says that there has to be at least one non-number somewhere in the name. Note that that doesn't do what the first poster asked for because it doesn't limit the characters to letters, numbers, and spaces. But I saw your other thread and I don't think you asked for that, so maybe this will work for you.

Edit: I think this will work if you want to limit the allowed characters, but also prevent all numbers:

^[A-Z0-9_ -]*[A-Z_ -]+[A-Z0-9_ -]*$

This example allows letters, numbers, and _, -, space, but not all numbers. (Note that if you want to allow '-', then it has to be listed last in the brackets, or else it will cause an error).