doute3621
2019-05-20 10:54
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PHP多维数组求和并使其唯一[重复]

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Following is my array. I need to add its Sum field according to each emp_firstname. Some has only one time coming, some coming two times. how can we sum the field and make the array unique?

Array
(
    [0] => Array
        (
            [emp_firstname] => Alistair
            [non_pm] => AMZ
            [sum] => 2
        )


    [1] => Array
        (
            [emp_firstname] => Shakkeer
            [non_pm] => SHK
            [sum] => 3
        )

    [2] => Array
        (
            [emp_firstname] => Waqas
            [non_pm] => WAS
            [sum] => 12
        )

    [3] => Array
        (
            [emp_firstname] => Zain
            [non_pm] => ZAI
            [sum] => 9
        )


    [4] => Array
        (
            [emp_firstname] => Shakkeer
            [gud_pmeditor] => SHK
            [sum] => 4
        )

    [5] => Array
        (
            [emp_firstname] => Zain
            [gud_pmeditor] => ZAI
            [sum] => 2
        )

)
</div>

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