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PHP SplDoublyLinkedList bottom () function

Syntax:
mixed SplDoublyLinkedList::bottom (void)
Parameters:takes no parameters.Returned value:Returns the value of the first node in a doubly linked list.The programs below illustrate the function SplDoublyLinkedList::bottom()in PHP:Program 1:  
// Declare an empty SplDoublyLinkedList $list = new SplDoublyLinkedList;  
// Use the SplDoublyLinkedList::push() function for
// add elements to SplDoublyLinkedList $list -> push (1); $list -> push (2); $list -> push (3); $list -> push (8); $list -> push (5);  
// Use the bottom() function $val = $list -> bottom();  
// Show result print_r ( $val );  
?>
Exit:
1
Program 2:  
// Declare an empty SplDoublyLinkedList $list = new SplDoublyLinkedList;  
// Use the SplDoublyLinkedList::add() function for
// add elements to SplDoublyLinkedList $list -> add (0, 30); $list -> add (1, 20); $list -> add (2, 30); $list -> add (3, " Geeks " ); $list -> add (4, ’ G’ );  
// Use the bottom() function $val = $list -> bottom();  
// Show result print_r ( $val );  
?>
Exit:
30
Link: https://www.php.net/manual/ en / spldoublylinkedlist.bottom.php

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