Online PHP editor | rfc for 46auN

@ 2014-10-27T15:38:56Z

<?php

class ObjectMap
{

    private $keyMap = [];

    private $valMap = [];

    private $keyVal = [];

    private $valKey = [];

    private function hash($object)
    {
        return spl_object_hash($object);
    }

    public function set($key, $val)
    {
        $this->keyMap[$keyHash = $this->hash($key)] = $key;
        $this->valMap[$valHash = $this->hash($val)] = $val;
        $this->keyVal[$keyHash] = $valHash;
        $this->valKey[$valHash] = $keyHash;
    }

    public function get($key)
    {
        if (isset($this->keyVal[$keyHash = $this->hash($key)], $this->valMap[$this->keyVal[$keyHash]])) {
            return $this->valMap[$this->keyVal[$keyHash]];
        }
        return null;
    }

    public function getKey($val)
    {
        if (isset($this->valKey[$valHash = $this->hash($val)], $this->keyMap[$this->valKey[$valHash]])) {
            return $this->keyMap[$this->valKey[$valHash]];
        }
    }

}

$objectMap = new ObjectMap();
$objectMap->set($a = (object) ['value' => 'a'], $b = (object) ['value' => 'b']);
$objectMap->set($c = (object) ['value' => 'c'], $d = (object) ['value' => 'd']);
$objectMap->set($e = (object) ['value' => 'e'], $f = (object) ['value' => 'f']);

var_dump($objectMap->get($a));
var_dump($objectMap->get($c));
var_dump($objectMap->getKey($f));

Output for rfc.property-hooks, git.master, git.master_jit: object(stdClass)#3 (1) { ["value"]=> string(1) "b" } object(stdClass)#5 (1) { ["value"]=> string(1) "d" } object(stdClass)#6 (1) { ["value"]=> string(1) "e" }

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2022-12-01 RFC: Property hooks - included in PHP 8.4
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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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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