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@ 2021-01-06T00:35:01Z

<?php

$rooms = array (
    'The Lounge' => 
    array (
        'id' => 1,
        'privacy' => 'public',
        'users' => 
        array (
            'QUICHE POIREAU' => 
            array (
                'smiley' => 'smi_smile.gif',
                'name' => 'QUICHEPOIREAU',
                'state' => NULL,
                'id' => 1
            ),
            'JOHN DOE' => 
            array (
                'smiley' => 'smi_smile.gif',
                'name' => 'JoeFRANC',
                'id' => 40
            ),
        )
    ),
    'The Beach' => 
        array (
            'id' => 2,
            'privacy' => 'public',
            'users' => 
            array (
                Null => 
                array (
                    'smiley' => Null,
                    'name' => Null,
                    'state' => Null,
                    'id' => Null
                ),
                
            ),
            
        )
    
);

foreach ($rooms as $name => $room) {
    $users = count(array_filter(array_keys($room['users'])));
    echo "$name: $users users\n";
}

Output for git.master, git.master_jit, rfc.property-hooks: The Lounge: 2 users The Beach: 0 users

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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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