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@ 2018-10-31T11:02:00Z

<?php

Class Filter
{
    private $filters = [];

    public function addIds($ids)
    {
        if (empty($this->filters['id']))
        {
            $this->filters['id'] = $ids;
        }
        else
        {
            // Append new ids
/*
            if (!is_array($this->filters['id']))
            {
                $this->filters['id'] = [$this->filters['id']];
            }
            if (!is_array($ids))
            {
                $ids = [$ids];
            }
*/
//            $this->filters['id'] = (array)$this->filters['id'] + (array)$ids;
            $this->filters['id'] = array_unique(array_merge( (array)$this->filters['id'], (array)$ids ));
            
        }
    }
    
    public function getFilters()
    {
        return $this->filters;
    }
}

$filter = new Filter();
$filter->addIds(1);
$filter->addIds(22);
$filter->addIds(2);
//$filter->addIds([1,2,3,4]);
//$filter->addIds([4,3,2,1,0]);

var_dump($filter->getFilters());

Output for git.master_jit, git.master, rfc.property-hooks: array(1) { ["id"]=> array(3) { [0]=> int(1) [1]=> int(22) [2]=> int(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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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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