PHP - Ds Deque insert() Function

Ds\Deque::insert() function can insert the values at a given index.

Syntax

public void Ds\Deque::insert( int $index [, mixed $...values ] )

Ds\Deque::insert() function can insert the values into the deque at a given index.

Ds\Deque::insert() function doesn't return any value. This function can throw OutOfRangeException if an index is not valid.

Example 1

<?php 
   $deque = new \Ds\Deque([1, 2, 3, 4, 5]); 
   echo("The elements in the Deque: \n"); 
   print_r($deque); 
   echo("\n Insert a value 6 at index 4: \n"); 
   
   $deque->insert(4, 6); 
   print_r($deque);
?>

Example 2

<?php 
   $deque = new \Ds\Deque([1, 2, 3, 4, 5]); 
   echo("The original deque: \n"); 
   print_r($deque); 
   echo("\n The modified deque: \n"); 
   
   $deque->insert(2, ...[10, 20, 30]); 
   print_r($deque); 
?>