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@ 2014-09-17T15:37:17Z

<?php

$doubly=new SplDoublyLinkedList();
$doubly->push(array('name'=>'Naruto'));
$doubly->push(array('name'=>'Sakura'));
$doubly->push(array('name'=>'Neji'));
$doubly->push(array('name'=>'Sasuke'));
var_dump($doubly);
echo "\r\n FIFO Traversing \r\n";
$doubly->setIteratorMode(SplDoublyLinkedList::IT_MODE_FIFO | SplDoublyLinkedList::IT_MODE_KEEP);
$doubly->rewind();
foreach($doubly as $key=>$value)
{
    echo "\r\nTraversed:".$key.' '.$value['name'];
}
echo "\r\nLIFO Traversing - Keep mode \r\n";
$doubly->setIteratorMode(SplDoublyLinkedList::IT_MODE_LIFO | SplDoublyLinkedList::IT_MODE_KEEP);
$doubly->rewind();
foreach($doubly as $key=>$value)
{
    echo "\r\nTraversed:".$key.' '.$value['name'];
}

echo "\r\nLIFO Traversing - Delete mode \r\n";
$doubly->setIteratorMode(SplDoublyLinkedList::IT_MODE_LIFO | SplDoublyLinkedList::IT_MODE_DELETE);
$doubly->rewind();

foreach($doubly as $key=>$value)
{
    if($key == 2) break;
    echo "\r\nTraversed:".$key.' '.$value['name'];
}
var_dump($doubly);

Output for git.master, git.master_jit, rfc.property-hooks: object(SplDoublyLinkedList)#1 (2) { ["flags":"SplDoublyLinkedList":private]=> int(0) ["dllist":"SplDoublyLinkedList":private]=> array(4) { [0]=> array(1) { ["name"]=> string(6) "Naruto" } [1]=> array(1) { ["name"]=> string(6) "Sakura" } [2]=> array(1) { ["name"]=> string(4) "Neji" } [3]=> array(1) { ["name"]=> string(6) "Sasuke" } } } FIFO Traversing Traversed:0 Naruto Traversed:1 Sakura Traversed:2 Neji Traversed:3 Sasuke LIFO Traversing - Keep mode Traversed:3 Sasuke Traversed:2 Neji Traversed:1 Sakura Traversed:0 Naruto LIFO Traversing - Delete mode Traversed:3 Sasukeobject(SplDoublyLinkedList)#1 (2) { ["flags":"SplDoublyLinkedList":private]=> int(3) ["dllist":"SplDoublyLinkedList":private]=> array(3) { [0]=> array(1) { ["name"]=> string(6) "Naruto" } [1]=> array(1) { ["name"]=> string(6) "Sakura" } [2]=> array(1) { ["name"]=> string(4) "Neji" } } }

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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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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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