Sort by filename with glob(..., GLOB_BRACE)

Question

Let's say I have these files in the current folder:

a.txt
b.txtbis
c.txt
+ other files with other extensions

I want to list .txt and .txtbis files in a single list with PHP glob, and I want the result to be sorted by filename. Unfortunately:

• glob("*.{txtbis,txt}", GLOB_BRACE) gives Array ( [0] => b.txtbis [1] => a.txt [2] => c.txt )

• glob("*.{txt,txtbis}", GLOB_BRACE) gives Array ( [0] => a.txt [1] => c.txt [2] => b.txtbis )

None of them is sorted as it should.

How to have a list sorted by filename when using braces in glob?

Answer 1

Glob sorts the files by full path names (path + name + extension) alphabetically. If you only want to sort by (base)name, you can use usort:

$files = glob("*.{txtbis,txt}", GLOB_BRACE);

usort(
  $files, 
  function($a,$b){
    return basename($a) <=> basename($b);
  }
);

var_dump($files);