What are the potential conflicts that can arise when using multiple libraries with different include paths in PHP?

When using multiple libraries with different include paths in PHP, potential conflicts can arise if the libraries have dependencies on different versions of the same files or if the include paths are not properly set up. To solve this issue, you can use the `set_include_path()` function to set the include path dynamically before including the files from each library.

// Set the include path for the first library
set_include_path('/path/to/first/library');

// Include the files from the first library
require_once 'file_from_first_library.php';

// Set the include path for the second library
set_include_path('/path/to/second/library');

// Include the files from the second library
require_once 'file_from_second_library.php';