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@ 2018-08-19T19:33:22Z

<?php

$ll = new SplDoublyLinkedList();

$ll->push('ze');
$ll->push('ome');
$ll->push('yei');
$ll->push('nahui');

$ll->rewind();

// HHVM works fine
$iterations_done = iterator_apply($ll, function(Iterator $it) {

    echo implode("\t=>", array(
        $it->key(),
        $it->current(),
        ucfirst($it->current())
    )),"\n";
    
    return true;

}, array($ll));

echo "Did iterate {$iterations_done} times \n";

$ll->rewind();

$iterations_done = iterator_apply($ll, function(Iterator $it) {

    echo implode("\t=>", array(
        $it->key(),
        $it->current(),
        ucfirst($it->current())
    )),"\n";
    
    $it->next();
    
    return true;

}, array($ll));

echo "Did iterate {$iterations_done} times \n";

$ll->setIteratorMode(SplDoublyLinkedList::IT_MODE_FIFO | SplDoublyLinkedList::IT_MODE_DELETE);

var_dump($ll->count());

foreach($ll as $key => $val) {
    echo "{$key}\t",ucfirst($val),"\n";
}

var_dump($ll->count());

Output for git.master, git.master_jit, rfc.property-hooks: 0 =>ze =>Ze 0 =>ze =>Ze 0 =>ze =>Ze 0 =>ze =>Ze Did iterate 4 times 0 =>ze =>Ze 1 =>ome =>Ome 2 =>yei =>Yei 3 =>nahui =>Nahui Did iterate 4 times int(4) 0 Ze 0 Ome 0 Yei 0 Nahui int(0)

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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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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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