Fatal error: cannot redeclare Tran () (previusly declared in

The solution is as follows:

1. is there any include, require, or other file functions in your source code that contain the definition of the function NW (), and the Code contains NV () so the redeclare (repeated declaration/Definition) error occurs.
2. Php contains two files with the same name function. What are the consequences?
A:

(1) The following error occurs: Fatal error: cannot redeclare function name () (previously declared in error program: Number of wrong rows)

(2) The system will prompt fatal error: cannot redeclare function name, that is, you have already declared this function. You can change include or require to include_once or require_once.