Sorting a PHP associative array - arrays

Question

I would like my associative array to have its elements sorted. Currently, my array is like:
Array
(
[1585] => Chicago, Ohio,Dallas, Denver, Detroit, Houston, Las Vegas, So. Calf.
[1586] => Chicago, Ohio, Dallas, Denver, Houston, Las Vegas, So. Calf.
[1588] => The Bay Area, Chicago, Dallas, Detroit, Houston, Las Vegas, Minneapolis
[1589] => Charlotte, Chicago, Ohio, D.C.
[1590] => Orange County, Orlando, Philadelphia, Phoenix, Richmond, San Diego, The Bay Area, Seattle
)
Whereas I would like this array to be in ascending order like this:
Array
(
[1585] => Chicago, Dallas, Denver, Detroit,Houston, Las Vegas, Ohio, So. Calf.
[1586] => Chicago, Dallas, Denver, Houston, Las Vegas,, Ohio, So. Calf.
[1588] => Chicago, Dallas, Detroit, Houston, Las Vegas, Minneapolis, The Bay Area
[1589] => Charlotte, Chicago, D.C., Ohio
[1590] => Orange County, Orlando,Philadelphia, Phoenix, Richmond,San Diego, Seattle, The Bay Area
)
Thanks ....

Answer 1

You need to loop over each element explode on the , to get a list you can actually sort. then you can use a sort function on the list and implode back to , separation. For example:
foreach($arr as $id => $list){
$listArr = explode(',', $list);
sort($listArr);
$arr[$id] = implode(', ', $listArr);
}
This is just a simple example. Depending on the format and consistency of the separation of items in the string you may have to add in some trimming or use preg_split instead of explode but that should give you the basic idea.