__FILE__=D:\Soft\xampp\htdocs\test\test.php __DIR__=D:\Soft\xampp\htdocs\test getcwd()=D:\Soft\xampp\htdocs\test $_SERVER["SCRIPT_FILENAME"]=D:/Soft/xampp/htdocs/test/test.php
__FILE__、__DIR__区别
原文：https://www.cnblogs.com/cjjjj/p/10708314.html
