Online PHP editor | output for a13iC

@ 2020-12-15T02:08:04Z

<?php

$arr1 = [
    "Friday" => ["Breakfast" => 32, "Lunch" => 45],
    "Sunday" => ["Lunch" => 12]
];

$arr2 = [
    "Sunday" => ["Breakfast" => 7, "Lunch" => 3],
    "Monday" => ["Breakfast" => 12]
];

$arr3 = [
    "Monday" => ["Breakfast" => 31]
];

$result = [];
foreach (array_merge([$arr1], [$arr2], [$arr3]) as $array) {
    foreach ($array as $day => $meals) {
        foreach ($meals as $meal => $count) {
            $result[$day][$meal] = ($result[$day][$meal] ?? 0) + $count;
        }
    }
}
var_export($result);

Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.28, 8.4.1 - 8.4.14, 8.5.0: array ( 'Friday' => array ( 'Breakfast' => 32, 'Lunch' => 45, ), 'Sunday' => array ( 'Lunch' => 15, 'Breakfast' => 7, ), 'Monday' => array ( 'Breakfast' => 43, ), )
Output for 8.4.15: /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.35' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.34' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15)
Process exited with code 1.

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