How to remove the "Notice: undefined" configuration in PHP

This error is reported by default in PHP. My PHP version is 5.2.9-1:

Notice: Undefined...

This is to print out the warning on the page. Although this is conducive to exposing program problems, sometimes we still do not want it to appear.

You need to set the Display error level to solve the problem.

The common solution on the network is to modify the configuration of PHP. ini:

Solution:

1) error_reporting settings:
Locate error_reporting = e_all

Change to error_reporting = e_all &~ E_notice 2) register_globals settings:
Find register_globals = off

Change to register_globals = on

OK. The problem is solved!