sorting array question

i have the following code which reads a list of files from a directory - $listcmd = "ls " .$dirPath; $temp = exec($listcmd, $listoffiles, $status); if($status == 0) { for ($i =0; $i < sizeof($listoffiles); $i++) { $this->fileName[$i] = $listoffiles[$i]; $this->sizeofFile[$i] = sprintf("%01.2f", (filesize($dirPath."/".$listoffiles[$i])/1024)/1024); $this->fileDate[$i] = date("d-M-y H:i", filemtime($dirPath."/".$listoffiles[$i])); } $this->displayFiles(); What I want to do is display the files sorted by date. Okay, so I've just realised that the really easy way to do this is by adding -St (sort by time) to the ls command... $listcmd = "ls -St " .$dirPath; But how could this be achieved by sorting the three arrays? What if I alternately wanted to sort the files by name, size or date without re-reading the directory each time? Would an associative array structure be better suited to this type of operation? Thanks for your insight, Javier _________________________________________________________________ Chat with friends online, try MSN Messenger: http://messenger.msn.com