XF 2.0 Username Regex

[Atmazphere]

Hi,
I'm only looking to allow letters and numbers into a username. Basically, all I want to do is remove the space in usernames as I do not want users having their full names on the forum or anything along that lines, just usernames.

For example:
test12345 would be allowed
test-12345 would be disallowed
test test would be disallowed

 

[AndyB]

If you would like to restrict to the following username:

1) Only the a-z A-Z and 0-9 are allowed.
2) Username cannot be all numbers.
3) Username cannot be all caps.

Use the following:

^[a-zA-Z0-9]*[a-zA-Z][a-zA-Z0-9]*[a-z][a-zA-Z0-9]*$

 

[Atmazphere]

If you would like to restrict to the following username:

1) Only the a-z A-Z and 0-9 are allowed.
2) Username cannot be all numbers.
3) Username cannot be all caps.

Use the following:

^[a-zA-Z0-9]*[a-zA-Z][a-zA-Z0-9]*[a-z][a-zA-Z0-9]*$

Hey @AndyB,
I don't mind usernames being all caps or numbers, basically, just want to remove the space in usernames.

 

[AndyB]

Try this:

1) Only the a-z A-Z and 0-9 are allowed.
2) Must be single word.

^[a-zA-Z0-9]*$

 

[AndyB]

Be sure to edit this phrase:

this_is_name_that_will_be_shown_with_your_messages

You should add to the phrase that spaces and special characters are not allowed.

 

[Azaly]

1) Only the a-z A-Z and 0-9 are allowed.
2) Username cannot be all numbers.
3) Username cannot be all caps.

Could you please tell me if I edited correctly. I additionaly need to use cyrillic symbols (а-яА-Я) and symbols " " (space), "_" (underscore), "-" (dash), "(", ")" (brackets) and @:

^[a-zA-Zа-яА-Я0-9 _-@()]*[a-zA-Zа-яА-Я _-@()][a-zA-Zа-яА-Я0-9 _-@()]*[a-zа-я _-@()][a-zA-Zа-яА-Я0-9 _-@()]*$

 

[AndyB]

Could you please tell me if I edited correctly.

I suggest you use this website to test your regex.

https://regex101.com/

 

[JackieChun]

If you would like to restrict to the following username:

1) Only the a-z A-Z and 0-9 are allowed.
2) Username cannot be all numbers.
3) Username cannot be all caps.

Use the following:

^[a-zA-Z0-9]*[a-zA-Z][a-zA-Z0-9]*[a-z][a-zA-Z0-9]*$

How do you modify this rule to allow spaces?

 

[AndyB]

How do you modify this rule to allow spaces?

^[a-zA-Z0-9 ]*[a-zA-Z][a-zA-Z0-9]*[a-z][a-zA-Z0-9]*$

 

[JackieChun]

Thanks @AndyB, XenForo gives an error message of invalid regex with that string. I used the following found in a different thread, and it worked.

/^[a-z0-9\s]+$/i