Ask questions about PHPPEARDB

For example, include & nbsp; DB. php; $ r & nbsp; DB: connect (mysql: root: [email & #160; protected] dbname); var_dump ($ r ); include & nbsp; DB. php; do I need to change this path? I have installed and want to learn about the PHP PEAR DB.
For example

Include "DB. php ";
$ R = DB: connect ("mysql: // root: [email protected]/dbname ");
Var_dump ($ r );


Program
Include "DB. php ";
Do I need to change this path?

I have installed PEAR DB and go-pear.phar php-mysql
The error still indicates that DB. php cannot be found.

If you change the path in the program
No error prompt, no output

Tutorial
How can this problem be solved? Is there a saying during installation?
------ Solution --------------------
You have not installed
PEAR requires that the pear installation path be written in include_path.