// 獲取當前目錄
echo realpath("."). "<br>";
echo getcwd() . "<br>";
// 獲取上級目錄
echo realpath(".."). "<br>";
// 獲取網站根目錄
echo $_SERVER['DOCUMENT_ROOT'];
// 獲取目錄信息
$path_parts = pathinfo(__FILE__);
echo $path_parts["dirname"] . "<br>";
echo $path_parts["basename"] . "<br>";
echo $path_parts["extension"] . "<br>";
echo dirname(__FILE__);
echo getcwd() . "<br>";
// 獲取上級目錄
echo realpath(".."). "<br>";
// 獲取網站根目錄
echo $_SERVER['DOCUMENT_ROOT'];
// 獲取目錄信息
$path_parts = pathinfo(__FILE__);
echo $path_parts["dirname"] . "<br>";
echo $path_parts["basename"] . "<br>";
echo $path_parts["extension"] . "<br>";
echo dirname(__FILE__);
http://y312ff.blog.163.com/blog/static/127011094201123142522407/