PHP:使用给定的字段顺序按比 1 级维度值更深的维度值对多数组进行排序

Question

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Answer 1

为此，您可以使用 uasort功能:

function compare_callback($arr1, $arr2) {
    $start_year1 = $arr1[1]['start_year'];
    $start_year2 = $arr2[1]['start_year'];

    $start_month1 = $arr1[1]['start_month'];
    $start_month2 = $arr2[1]['start_month'];

    $end_year1 = $arr1[1]['end_year'];
    $end_year2 = $arr2[1]['end_year'];

    $end_month1 = $arr1[1]['end_month'];
    $end_month2 = $arr2[1]['end_month'];

    return ($start_year1 === $start_year2)
        ? (($start_month1 === $start_month2)
            ? (($end_year1 === $end_year2)
                ? (($end_month1 === $end_month2)
                    ? 0
                    : (($end_month1 < $end_month2) ? -1 : 1))
                : (($end_year1 < $end_year2) ? -1 : 1))
            : ($start_month1 < $start_month2) ? -1 : 1)
        : (($start_year1 < $start_year2) ? -1 : 1);
}

uasort($array, 'compare_callback');