__FILE__、__DIR__区别

__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

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转载自www.cnblogs.com/cjjjj/p/10708314.html