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PHP | SplDoublyLinkedList offsetGet() Function
  • Last Updated : 23 Aug, 2019

The SplDoublyLinkedList::offsetGet() function is an inbuilt function in PHP which returns the value at given index.

Syntax:

mixed SplDoublyLinkedList::offsetGet( $index )

Parameters: This function accepts a single parameter $index which holds the index value.

Return Value: It returns the value at given index.

Below programs illustrate the SplDoublyLinkedList::offsetGet() function in PHP:



Program 1:

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<?php 
  
// Declare an empty SplDoublyLinkedList
$list = new \SplDoublyLinkedList;
  
// Use SplDoublyLinkedList::add() function to 
// add elements to the SplDoublyLinkedList
$list->add(0, 30);
$list->add(1, 20);
$list->add(2, 30);
$list->add(3, "Geeks");
$list->add(4, 'G');
$list->rewind();
  
// Use SplDoublyLinkedList::offsetGet() function
// to check index exist or not
var_dump($list->offsetGet(2));
  
var_dump($list->offsetGet(3));
  
?> 

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Output:

int(30)
string(5) "Geeks"

Program 2:

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<?php 
  
// Declare an empty SplDoublyLinkedList
$list = new \SplDoublyLinkedList();
  
// Use SplDoublyLinkedList::push() function to 
// add elements to the SplDoublyLinkedList
$list->push(1);
$list->push(2);
$list->push(3);
$list->push(8);
$list->push(5);
  
// Use SplDoublyLinkedList::offsetGet() function
// to check index exist or not
var_dump($list->offsetGet(1));
var_dump($list->offsetGet(2));
var_dump($list->offsetGet(3));
  
?> 

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Output:

int(2)
int(3)
int(8)

Reference: https://www.php.net/manual/en/spldoublylinkedlist.offsetget.php

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