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@ 2019-06-13T07:55:33Z

<?php

 $array_2 = [

            [
                1, 2, 7
            ],

            [
                4, 5, 6
            ]

    ];

$tot = 0;
foreach($array_2 as $value){
    $tot +=array_sum($value);
}
echo $tot;

Output
Performance
VLD
References
Branches

array_sum: documentation ( source)

preferences:dark modelive previewkey bindings

37.22 ms | 404 KiB | 5 Q