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@ 2014-09-17T14:56:37Z

<?php
/*
 * Examples of DoublyLinkedList
 */

$obj = new SplDoublyLinkedList();
// Check wither linked list is empty
if ($obj->isEmpty())
{
    echo "Adding nodes to Linked List<br>";
    $obj->push(2);
    $obj->push(3);
    echo "Adding the node at beginning of doubly linked list <br>";
    $obj->unshift(10);
}

echo "<br>Our Linked List:";
print_r($obj);

$curr = $obj->current(); // this will return NULL as we have not set initial node.
echo "\r\n \r\n";
echo $obj->key();
echo "\r\n \r\n";
echo "<br> Rewinding the position so that current node points to first node ";
$obj->rewind(); 

echo "<br>Current node of the linked list:";
echo  $obj->current(); // this will print first node of the linked list.
echo "\r\n \r\n"; 
echo $obj->key(); 
echo "\r\n \r\n";
echo "<br>Moving to Next node:";
$obj->next();

echo "<br>Printing the next node:";
echo $obj->current();

Output for git.master, git.master_jit, rfc.property-hooks: Adding nodes to Linked List<br>Adding the node at beginning of doubly linked list <br><br>Our Linked List:SplDoublyLinkedList Object ( [flags:SplDoublyLinkedList:private] => 0 [dllist:SplDoublyLinkedList:private] => Array ( [0] => 10 [1] => 2 [2] => 3 ) ) 0 <br> Rewinding the position so that current node points to first node <br>Current node of the linked list:10 0 <br>Moving to Next node:<br>Printing the next node:2

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2020-03-21 RFC: Is_Literal - declined
2020-12-04 Enumerations - included in PHP 8.1
2018-06-15 Typed Properties v2 - implemented in PHP 7.4
2016-08-12 Object typehint - included in PHP 7.2
2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn
2016-04-19 Lexical scope support for anonymous classes - suspended
2016-04-17 Functional Interfaces - declined
2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0
2015-08-27 Callable Prototypes - declined
2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions
2015-02-18 Scalar type hints v5 - included in PHP 7
2015-02-14 Union Types - declined
2013-09-22 Anonymous classes - included in PHP 7

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