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@ 2014-08-28T23:31:22Z

<?php

class Node implements Countable
{
    private $nodes = [];
    public function __construct(array $nodes = [])
    {
        $this->nodes = $nodes;
    }
    public function getCount()
    {
        return count($this->nodes);
    }
    public function getCountRecursive()
    {
        $count = 0;
        foreach ($this->nodes as $node) {
            $count += ($node->getCountRecursive() + 1);
        }
        return $count;
    }
    
    public function count($mode)
    {
        if ($mode === COUNT_RECURSIVE) {
            return $this->getCountRecursive();
        }
        return $this->getCount();
    }
}

$node = new Node([
    new Node([
        new Node([
            new Node([
                new Node(),
                new Node(),
                new Node(),
            ]),
            new Node(),
            new Node(),
        ]),
        new Node(),
        new Node(),
    ]),
    new Node(),
]);

var_dump(count($node), count($node, COUNT_RECURSIVE));

Output for git.master, git.master_jit, rfc.property-hooks: Fatal error: Declaration of Node::count($mode) must be compatible with Countable::count(): int in /in/j4UlU on line 23
Process exited with code 255.

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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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