Randomly generate a "more reliable" user name? Do you have any ideas?

A project has a random set of usernames, passwords, and email addresses. None of them matter. This is the username that our boss is not satisfied. I am a random 12-character number, uppercase/lowercase letter. For example, in the mongozbhkrv367 slot, he said it is best to encapsulate a method to randomly generate a random user name, password, email address or something. None of the above. usernameOur boss is not satisfied.
I am a random 12-character number, uppercase/lowercase letter. For example cfgzBHKRV367
He said it is best to encapsulate a method to generate a random ReliableUser name. I really don't know how reliable this is. What do you think?

Is there such a third-party library (PHP) like this? Or you can give me a thought and write it on your own.

Reply content:

A project has a random set of usernames, passwords, and email addresses. None of the above.usernameOur boss is not satisfied.
I am a random 12-character number, uppercase/lowercase letter. For examplecfgzBHKRV367
He said it is best to encapsulate a method to generate a randomReliableUser name. I really don't know how reliable this is. What do you think?

Is there such a third-party library (PHP) like this? Or you can give me a thought and write it on your own.

Faker data
Random-name

Uinames:

Web: http://uinames.com
Github: https://github.com/thm/uinames/

Google Search: 250020.rar

Download and convert the Chinese name to PinYin! More than 20 million. You need to vomit.

1. Meaningful English
2. Birthday
3. QQ number
4. Self-made English names. Generally, the English names are short. The first letter is in upper or lower case, and the English names are rarely mixed.
5. Chinese name: pinyin
Hybrid use

Prepare an English word library and then combine it randomly to at least identify meaningful words in it.
Further, the Lexicon can be classified, for example, using an adjective + a ranking.

Go to heroku to create a new project ~

Http://zh.lucida.me/blog/on-mobile-developing-1/

Collect the user names of a group of forums.

Capture a batch of usernames on weibo/twitter