Data from PHP array

[Phil I]

Hi, I need to construct a simple bar chart using two arrays generated by a PHP/MySQL query.
$aty represents values
$atx represents the column labels

Alternatively:
$datay=(str_getcsv($aty));
$datax=(str_getcsv($atx));

Could someone please help with the correct syntax/script?
Many thanks

[Phil I]

EDIT:
The full array is also stored in a text (.txt) file. How would we extract that to a DataTable in the script?
Thanks

[Sukhjeet Singh]

Array
(
    [48-sheets HD] => Array
        (
            [2016] => 39877
            [2017] => 555648
        )

    [6-Sheets] => Array
        (
            [2017] => 473453
        )

)

i want o add the 2016 value as 0 in 6-Sheets