Online PHP editor | output for 91jp8

@ 2024-01-13T08:40:25Z

<?php

$array = [
    '2015-09-23' => [
        'user' => [13, 12],
        'count' => [
            'count' => 2,
            'total' => 2,
        ],
    ],
    '2015-09-24' => [
        'user' => [14],
        'count' => [
            'count' => 1,
            'total' => 1,
        ],
    ],
    '2015-09-25' => [
        'user' => [15],
        'count' => [
            'count' => 1,
            'total' => 1,
        ],
    ],
    '2015-09-26' => [
        'user' => [16],
        'count' => [
            'count' => 1,
            'total' => 1,
        ],
    ],
    '2015-09-27' => [
        'user' => [17, 18],
        'count' => [
            'count' => 2,
            'total' => 2,
        ],
    ],
    '2015-09-28' => [
        'user' => [19, 20, 21, 22, 23, 24, 25, 26, 27, 28],
        'count' => [
            'count' => 10,
            'total' => 10,
        ],
    ],
];

$total = 0;
foreach ($array as ['count' => ['count' => $c, 'total' => &$t]]) {
    $t = $total += $c;
} 
var_export($array);

Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7: array ( '2015-09-23' => array ( 'user' => array ( 0 => 13, 1 => 12, ), 'count' => array ( 'count' => 2, 'total' => 2, ), ), '2015-09-24' => array ( 'user' => array ( 0 => 14, ), 'count' => array ( 'count' => 1, 'total' => 3, ), ), '2015-09-25' => array ( 'user' => array ( 0 => 15, ), 'count' => array ( 'count' => 1, 'total' => 4, ), ), '2015-09-26' => array ( 'user' => array ( 0 => 16, ), 'count' => array ( 'count' => 1, 'total' => 5, ), ), '2015-09-27' => array ( 'user' => array ( 0 => 17, 1 => 18, ), 'count' => array ( 'count' => 2, 'total' => 7, ), ), '2015-09-28' => array ( 'user' => array ( 0 => 19, 1 => 20, 2 => 21, 3 => 22, 4 => 23, 5 => 24, 6 => 25, 7 => 26, 8 => 27, 9 => 28, ), 'count' => array ( 'count' => 10, 'total' => 17, ), ), )

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