php get the current directory and current folder

 

1. <?php  

2. /**

3. * PHP access path or directory implementation

4. */  

5.  

6. //Magic variable, get the absolute path of the current file  

7. echo "__FILE__:  ========>  ".__FILE__;

8. echo '<br/>';

9.  

10. //Magic variable, get the directory of the current script

11. echo "__DIR__: ========>" .__ DIR__;

12. echo '<br/>';

13.  

14. //dirname returns the directory part of the path, dirname(__FILE__) is equivalent to __DIR__

15. echo "dirname(__FILE__):  ========>  ".dirname(__FILE__);

16. echo '<br/>';

17.  

18. //$_SERVER['PHP_SELF'] and $_SERVER['SCRIPT_NAME'] generally have the same result, they both get the file name of the current script

19. //There is a difference only when php runs in cgi mode, but now it is almost impossible to run php in cgi mode

20. echo '$_SERVER["PHP_SELF"]:  ========>  '.$_SERVER['PHP_SELF'];

21. echo '<br/>';

22.  

23. echo '$_SERVER["SCRIPT_NAME"]:  ========>  '.$_SERVER['SCRIPT_NAME'];

24. echo '<br/>';

25.  

26. //The absolute path of the currently executing script. Remember, it is not available to run php in CLI mode

27. echo '$_SERVER["SCRIPT_FILENAME"]:  ========>  '.$_SERVER['SCRIPT_FILENAME'];

28. echo '<br/>';

29.  

30. //The document root directory where the currently running script is located. Defined in the server configuration file.

31. echo '$_SERVER["DOCUMENT_ROOT"]:  ========>  '.$_SERVER['DOCUMENT_ROOT'];

32. echo '<br>';

33.  

34. //getcwd() returns the current working directory

35. echo "getcwd():  ========>  ".getcwd();

36. echo '<br>';

37.  

38. echo '<br>';

39. echo "PHP Finishing";