How can the PHP.ini file be configured to ensure smooth integration of libraries like PEAR without conflicting include paths?

To ensure smooth integration of libraries like PEAR without conflicting include paths, you can configure the PHP.ini file by setting the include_path directive to include the paths of both the default PHP libraries and the PEAR libraries. This will allow PHP to locate and load the necessary files from both sources without conflicts.

; Set the include_path directive in PHP.ini
include_path = ".:/usr/local/lib/php:/path/to/pear/lib"