The Ds\Vector::sorted() function is an inbuilt function in PHP which is used to sort the elements of the vector by creating a copy of the original vector. This will arrange the vector elements in increasing order using default comparator.
Syntax:
Ds\Vector public Ds\Vector::sorted( $comparator )
Parameters: This function accepts single parameter $comparator which holds the sorting function.
Return Value: This function returns a copy of sorted vector.
Below programs illustrate the Ds\Vector::sorted() function in PHP:
Program 1:
<?php   // Declare new Vector $vect = new \Ds\Vector([6, 5, 4, 3, 2, 1]);   echo("Original vector\n");   // Display the vector elements var_dump($vect);   // Use sorted() function to sort // the copy of vector elements $res = $vect->sorted();   echo("\nSorted elements\n");   // Display the sorted elements var_dump($res);   ?>  | 
Output:
Original vector
object(Ds\Vector)#1 (6) {
  [0]=>
  int(6)
  [1]=>
  int(5)
  [2]=>
  int(4)
  [3]=>
  int(3)
  [4]=>
  int(2)
  [5]=>
  int(1)
}
Sorted elements
object(Ds\Vector)#2 (6) {
  [0]=>
  int(1)
  [1]=>
  int(2)
  [2]=>
  int(3)
  [3]=>
  int(4)
  [4]=>
  int(5)
  [5]=>
  int(6)
}
Program 2:
<?php   // Declare new Vector $vect = new \Ds\Vector([3, 6, 1, 2, 9, 7]);   echo("Original vector\n");   // Display the vector elements var_dump($vect);   // Use sorted() function to sort // the copy of vector elements $res = $arr->sorted(function($element1, $element2) {     return $element1 <=> $element2; });   echo("\nSorted elements\n");   // Display the sorted elements var_dump($res);   ?>  | 
Output:
Original vector
object(Ds\Vector)#1 (6) {
  [0]=>
  int(3)
  [1]=>
  int(6)
  [2]=>
  int(1)
  [3]=>
  int(2)
  [4]=>
  int(9)
  [5]=>
  int(7)
}
Sorted elements
object(Ds\Vector)#3 (6) {
  [0]=>
  int(1)
  [1]=>
  int(2)
  [2]=>
  int(3)
  [3]=>
  int(6)
  [4]=>
  int(7)
  [5]=>
  int(9)
}
Reference: http://php.net/manual/en/ds-vector.sorted.php
