Multidimensional array sorting with key value

Question

I have an array like this in PHP. I what to ordered by amount ascending:

Array
(
    [0] => Array
        (
            [trans_id] => PR58EC68AFE8B0F3186
            [bill_number] => 1
            [order_date] => 2017-04-11
            [amount] => 800
            [trx_type] => purchase
        )

    [1] => Array
        (
            [trans_id] => PR58EC68AFE8B0F3186
            [bill_number] => 1
            [order_date] => 2017-04-11
            [amount] => 150
            [trx_type] => purchase-paid
        )

    [2] => Array
        (
            [trans_id] => PR58EC68AFE8B0F3186
            [bill_number] => 1
            [order_date] => 2017-04-11
            [amount] => 100
            [trx_type] => purchase-paid
        )

    [3] => Array
        (
            [trans_id] => BL58EC68EC4BCA18805
            [bill_number] => 1
            [order_date] => 2017-04-11
            [amount] => 2000
            [trx_type] => bill
        )

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– OldPadawan, Commented Apr 11, 2017 at 7:29
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– Twinfriends, Commented Apr 11, 2017 at 7:29

Shafiqul Islam · Accepted Answer · 2017-04-12 06:08:58Z

1

you can use usort() built in function with your custom function like this

    <?php
$yourarray = array(
    0 => array(
        'bill_number' => 3,
        'amount' => 100
    ),
    1 => array(
        'bill_number' => 4,
        'amount' => 50
    ),
    2 => array(
        'bill_number' => 5,
        'amount' => 150
    ),
);

function sortByOrder($a, $b)
{
    return $a['amount'] - $b['amount'];
}

usort($yourarray, 'sortByOrder');
echo "<pre>";
print_r($yourarray);
?>

then output will be

Array
(
    [0] => Array
        (
            [bill_number] => 4
            [amount] => 50
        )

    [1] => Array
        (
            [bill_number] => 3
            [amount] => 100
        )

    [2] => Array
        (
            [bill_number] => 5
            [amount] => 150
        )

)

for more information

http://php.net/manual/en/function.usort.php

edited Apr 12, 2017 at 6:08

answered Apr 11, 2017 at 7:40

Shafiqul Islam

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