PHP - função Ds Deque slice ()

A função Ds \ Deque :: slice () pode retornar o sub-deque de um determinado intervalo.

Sintaxe

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

A função Ds \ Deque :: slice () pode criar o sub-deque de um determinado intervalo.

Exemplo 1

<?php 
   $deque = new \Ds\Deque([1, 2, 3, 4, 5]); 
   echo("The elements in deque: \n"); 
   print_r($deque); 
   
   $deque_new = $deque->slice(2, 4); 
   echo("\n The deque after slice(): \n"); 
   print_r($deque_new); 
?>

Exemplo 2

<?php 
   $deque = new \Ds\Deque([1, 2, 3, 4, 5]); 
   echo("The elements in deque: \n"); 
   print_r($deque); 
   
   $deque_new = $deque->slice(3, -1); 
   echo("\n The deque after slice(): \n"); 
   print_r($deque_new); 
?>