PHP - Ds Map slice() Function

Ds\Map::slice() function can return a subset of the map defined by starting index and length.

Syntax

public Ds\Map Ds\Map::slice( int $index [, int $length ] )

Example 1

<?php 
   $map = new \Ds\Map([1 => 10, 2 => 20, 3 => 30, 4 => 40, 5 => 50]); 
  
   print_r($map->slice(3)); 
   print_r($map->slice(-3)); 
?>

Example 2

<?php 
   $map = new \Ds\Map([1 => 10, 2 => 20, 3 => 30, 4 => 40, 5 => 50]); 
   
   print_r($map->slice(2, 2)); 
   print_r($map->slice(-2, 2)); 
?>