PHP SplDoublyLinkedList next () Function

PHP

Syntax:
void SplDoublyLinkedList::next (void)
Parameters:this function does not take any parameters.Returned value:does not return any value.The programs below illustrate the function SplDoublyLinkedList::next() in PHP:Program 1:  
// 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' ); $list -> rewind ();  
// Use the SplDoublyLinkedList::current() function
// to get the current element var_dump ( $list -> current());  
// Use the next() function to enlarge
// index value $list -> next();  
// Use the SplDoublyLinkedList::current() function
// to get the current element var_dump ( $list -> current());  
?>
Exit:
int (30 ) int (20)
Program 2:  
// 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); $list -> rewind ();  
// Use the SplDoublyLinkedList::current() function
// to get the current element var_dump ( $list -> current());  
// Use the next() function to enlarge
// index value $list -> next(); $list -> next(); $list -> next();  
// Use the SplDoublyLinkedList::current() function
// to get the current element var_dump ( $list -> current());  
?>
Exit:
int (1 ) int (8)
Link: https:// www .php.net / manual / en / spldoublylinkedlist.next.php



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