Question

This is the way I list my folder’s folders [ only folder ]:

foreach(glob('k:\\thousandoffolders\\*', GLOB_ONLYDIR) as $folders){
    echo basename($folders).' '; // get folder's name
}

So,is it the right way!?

And my purpose is to get all folder's name which inside special folder and store them in the database MySQL.E.g:

drives with special folders:

D:\folderContainer
E:\folderContainer
...
H:\folderContainer

and every folderContainer may be contain thousands of folders.And I just want to go through all the folderContainers and get all folders’ name then store inside MySQL.And if folder’s name exist in database the MySQL could return it to notice and continue store next one.

Thank you very much!!

Answer 1

Is there a reason why scandir is not used? Regular expressions that glob() uses are not very efficient. I’d go with:

foreach(scandir('k:\\thousandoffolders\\') as $folder){
    if (in_array($folder, array('.', '..'))) continue;
    echo basename($folder).' '; // get folder's name
}

---

Update

In response to comments, I ran a test to see what the actual performance gains are.

According to results it took over 1.5 seconds for glob() to burn through 10 000 directories while scandir() completed the same task in 0.2 seconds. That is 700% faster.