A PHP function for statistical directory file size

Just came to the company in the morning, the head told me, grasp to write a small function, used to count the file size in the specified directory, I went, do it, fortunately a little foundation, a will be completed, haha. The code is below.

2. <?
4. /**
6. Functions for Statistics directory file size
8. @author Xfcode
10. @link http://www.jbxue.com
12. */
14. function Dirsize ($dir)
16. {
18. @ $dh = Opendir ($dir);
20. $size = 0;
22. While ($file = @readdir ($DH))
24. {
26. if ($file ! = "." and $file! = "...")
28. {
30. $path = $dir."/". $file;
32. if (Is_dir ($path))
34. {
36. $size + = Dirsize ($path);
38. }
40. ElseIf (Is_file ($path))
42. {
44. $size + = FileSize ($path);
46. }
48. }
50. }
52. @closedir ($DH);
54. return $size;
56. }
58. Function end
62. eg
64. $dir _path = "./my_files";
66. $dir _size = dirsize ($dir _path);
68. $dir _size = $dir _size/1024/1024;
70. Echo $dir _size.  "MB";
72. ?>

This function recursively iterates through all the files in the directory and calculates the total file size in megabytes.
Rookie moves, the big boys are laughed at.

A PHP function that has a statistical directory file size