Get all files inside a directory using php

Listing of files inside a directory can be done simply using php.
Following function can be used to list all the files inside a directory.

function list_directory($dirpath) {
 $files = array(); //files array
 $dirs = array(); //directories array
 $file_num = 0;  //set number of files to 0
 $dir_num = 0;  //set number of directories to 0
 //check if the path is a directory
 if (is_dir($dirpath)) { 
  //create a handle for opening directory
  $hndl = opendir($dirpath);
  //start the loop
  do {
   //read the directory
   $fle = readdir($hndl);
   if ($fle !== FALSE && $fle != "." && $fle != "..") {
    //check if its a directory or a file
    if (is_dir("$dirpath/$fle")) $dirs[$dir_num++] = $fle;
    else $files[$file_num++] = $fle;
   }
  } while($fle !== FALSE);
  closedir($hndl);
 }
 return array($dir_num, $file_num, $dirs, $files);
}