What is PATH_SEPARATOR_PHP Tutorial

zendframework include settings index.php

set_include_path(. . PATH_SEPARATOR . ../library/ . PATH_SEPARATOR . ./application/models/

. PATH_SEPARATOR . ./application/lib/

. PATH_SEPARATOR . get_include_path());

PATH_SEPARATOR is a constant, which is a ":" sign on Linux systems and a ";" sign on Windows. Therefore, it is best to use the constant PATH_SEPARATOR instead when writing a program, otherwise errors will occur if the system is transplanted from Linux to Win system or vice versa!
get_include_path gets the current existing environment variables, plus the previous settings, it is the new system include