In PHP, the size of the file can be obtained through the FileSize function, and the file size is expressed as a number of bytes. If you want to convert the units of a file size, you can define your own function to implement it.

Tag: File conversion resource BER definition echo func file size Art

2. <?php
4. function GetSize ($size, $format) {
6. $p = 0;
8. if ($format = = ' KB ') {
10. $p = 1;
12. } elseif ($format = = ' mb ') {
14. $p = 2;
16. } elseif ($format = = ' GB ') {
18. $p = 3;
20. }
22. $size/= Pow (1024x768, $p);
24. return Number_format ($size, 3);
26. }
30. $filename = '/data/webroot/usercode/code/resource/test.txt ';
32. $size = filesize ($filename);
36. $size = GetSize ($size, ' KB '); //For unit conversions
38. Echo $size.'  KB ';

In PHP, the size of the file can be obtained through the FileSize function, and the file size is expressed in bytes. If you want to convert the units of a file size, you can define your own function to implement it.