1,string realpath ( string $path )
Returns canonicalized absolute pathname(返回标准化绝对路径)
Returns canonicalized absolute pathname(返回标准化绝对路径)
//will out put e:\MyWork\oDesk\canlendar\calendar_dev\calendar_dev\test
echo realpath ( '.' )
//will out put E:\MyWork\oDesk\canlendar\calendar_dev\calendar_dev\
echo realpath('../');
//will out put E:\MyWork\oDesk\canlendar\calendar_dev\calendar_dev\res
echo realpath('../res');
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