I am trying to read a list of directories from disk, indent them to show parent/child relationship and display in a dropdown list. Here's what I have so far:
PHP Code:
function GetStorageLocations($pathDir, $store_locns, &$level)
{
if ($handle = opendir($pathDir))
{
while (false !== ($file = readdir($handle)))
{
if(is_dir($pathDir.'/'.$file))
{
if ($file != "." && $file != "..")
{
$level++;
$fileShow = str_pad($file, strlen($file) + (int)$level, "-", STR_PAD_LEFT);
$store_locns[] = array('id' => $file, 'text' => $fileShow);
$store_locns = GetStorageLocations($pathDir.'/'.$file, $store_locns, $level);
}
}
}
closedir($handle);
}
$level--;
return $store_locns;
}
When I call that function and look at the results, they appear as
PHP Code:
parentA
-child 1 of parentA
--sub-directory in child 1
parentB
-child 1 in parentB
--sub-directory in child 1
---sub-directory in sub-directory of child 1
That is how I want it to work. It gives a visual indication of the structure in the list.
The problem is with the sorting. From what I have read, readdir reads in the directories based on their datestamp but I want the order to be alphabetical. I've tried soting using this code
PHP Code:
function comparar($a, $b) {
return strnatcasecmp($a["id"], $b["id"]);
}
usort($store_locns, "comparar");
That sorts them alphabettically but I lose the structure so that a child of one parent might be located under a different parent.
Is there a simpler way to do this or can anyone see a way to make it work correctly?