[Easy] What is the right code for joining this 2 textfield

I have 2 textfield (for search Name and Username) and i want to joining them to just one textfield only, so people can search for Name and Username in just one field


this is textfield for Name

and this textfield for Username

what is the right code to do that?

i try this, but it is not right

 

Perhaps in your text field you want to say.

Search by firstname/lastname:

and then in your database search perform two search queries.

 

Thanks for answering, i dont know where to do that in database, let me know if you know tutorial url about that


Yup i want to make it
Search by Name/Username:


i try this but its still not work

lets share your knowledge with me if you have it