Sorting functionality scandir function bug

Question

I'm experiencing some unexpected behaviour with the scandir function. The documentation says it is sorting the files and folders default by ascending order. Now I have a folder with six files in it:

__Abstract.coffee
__Abstract.js
Copy.coffee
Copy.js
Delete.coffee
Delete.js

Now it appears to be that PHP's scandir output is most of the times:

array (
  0 => '.',
  1 => '..',
  2 => '__Abstract.coffee',
  3 => '__Abstract.js',
  4 => 'Copy.coffee',
  5 => 'Copy.js',
  6 => 'Delete.coffee',
  7 => 'Delete.js',
)

But sometimes (1 times in 50 or so) it puts the __Abstract.coffee and __Abstract.js at the end so the returned value is:

array (
  0 => '.',
  1 => '..',
  2 => 'Copy.coffee',
  3 => 'Copy.js',
  4 => 'Delete.coffee',
  5 => 'Delete.js',
  6 => '__Abstract.coffee',
  7 => '__Abstract.js',
)

Because of this the JS files are sometimes not loaded in the right order (it is a js packer/minifier script).

I know how to work around this with the sort functions, but that is not very efficient if the scandir function should order the files by itself. Is this a bug in the scandir function and should I report this in the php bugtracker or is it more like a filesystem/OS thing (I'm using a default LVM installation under CENTOS 6.3).

Can you guys please help me with some advice :-) thank you!

I have sent in a bugreport at PHP: https://bugs.php.net/bug.php?id=65709

Answer 1

It looks like this has something to do with the intl extension. When I disable it, the problem does not occure. It doesn't make a diffrence if the extension is installed with pecl or compiled using --enable-intl. I will catch up with the developers of the intl extension for the solution to this problem.