使用数字键对关联的多维数组的切片进行排序

时间:2018-06-26 12:01:44

标签: php sorting multidimensional-array slice associative-array

在此功能assignView($sums,$count)中,我想以最少的观看次数对SAP(合作伙伴)进行INSERT INTO

我面临的问题是从$count数组中切出元素以便对其进行排序。我想我可以在SQL查询中对它进行排序,但是仍然存在切出正确的prio元素的问题。

一切正常,直到assignView($sums,$count)函数中我要执行array_slice的部分为止。

当然,没有什么是一成不变的。如果您看到实现我的目标的更好或更有效的方法,请随时分享:)

我当时正在考虑通过添加切片逻辑来修改findKey($haystack,$needle)函数,但是由于SAP中的$count键是数字键,因此我要画一个空白。

对如何解决这个问题有何建议?

$sql = "
    SELECT
        `partner`,
        `day_slice0006` as q1,
        `day_slice0612` as q2,
        `day_slice1218` as q3,
        `day_slice1800` as q4
    FROM `sap_quotas`
    WHERE `servertime` < UNIX_TIMESTAMP()
    GROUP BY `partner`";

if($stmt = $db->prepare($sql))
{

    $stmt->execute();
    $stmt->bind_result($partner,$q1,$q2,$q3,$q4);

    while($stmt->fetch())
    {

        $SAPshares[$partner]['00:00-06:00'] = $q1; // $partner is a unique id. ex. 3001
        $SAPshares[$partner]['06:00-12:00'] = $q2; // day_slice0006 hold a value from 1-3
        $SAPshares[$partner]['12:00-18:00'] = $q3; // corresponding to priorities
        $SAPshares[$partner]['18:00-00:00'] = $q4; // 1=(2*2), 2=(3*2), 3=n

    }
    $stmt->close();

    $SAPshares = array(
        3000 => array(
            '00:00-06:00' => 1,
            '06:00-12:00' => 1,
            '12:00-18:00' => 1,
            '18:00-00:00' => 1),
        3001 => array(
            '00:00-06:00' => 1,
            '06:00-12:00' => 1,
            '12:00-18:00' => 1,
            '18:00-00:00' => 1),
        3002 => array(
            '00:00-06:00' => 2,
            '06:00-12:00' => 2,
            '12:00-18:00' => 2,
            '18:00-00:00' => 2),
        3003 => array(
            '00:00-06:00' => 3,
            '06:00-12:00' => 3,
            '12:00-18:00' => 3,
            '18:00-00:00' => 3)
    ); // EDIT: Added a faked resultset

    $SAPs = array_keys($SAPshares); // Array with the partner id's

}

$sql = "
    SELECT
        COUNT(`id`) AS cnt,
        `partner`,
        `servertime`,
        DATE_FORMAT(FROM_UNIXTIME(`servertime`),'%Y-%m-%d') AS today,
        CASE WHEN DATE_FORMAT(FROM_UNIXTIME(`servertime`),'%H:%i') <  '06:00:00'
                THEN '00:00-06:00'
             WHEN DATE_FORMAT(FROM_UNIXTIME(`servertime`),'%H:%i') >= '06:00:00'
             && DATE_FORMAT(FROM_UNIXTIME(`servertime`),'%H:%i') < '12:00:00'
                THEN '06:00-12:00'
             WHEN DATE_FORMAT(FROM_UNIXTIME(`servertime`),'%H:%i') >= '12:00:00'
             && DATE_FORMAT(FROM_UNIXTIME(`servertime`),'%H:%i') < '18:00:00'
                THEN '12:00-18:00'
             ELSE '18:00-00:00' END AS timesegment
    FROM `sap_daily_stats`
    GROUP BY `partner`, `today`, `timesegment`
    HAVING today = CURDATE()";

if($stmt = $db->prepare($sql))
{

    $stmt->execute();
    $stmt->bind_result($cnt,$partner,$servertime,$today,$timesegment);


    while($stmt->fetch())
    {

//      example format: $count[3001][1]['12:00-18:00'] = n
        $count[$partner][$timesegment][$SAPshares[$partner][$timesegment]] = $cnt;

    }
    $stmt->close();
}
$db->close();

$count = array(
3000 => array(
    '00:00-06:00' => array(1 => 9),
    '06:00-12:00' => array(1 => 4),
    '12:00-18:00' => array(1 => 1)),
3001 => array(
    '00:00-06:00' => array(1 => 12),
    '06:00-12:00' => array(1 => 4),
    '12:00-18:00' => array(1 => 1)),
3002 => array(
    '00:00-06:00' => array(2 => 6),
    '06:00-12:00' => array(2 => 4),
    '12:00-18:00' => array(2 => 1)),
3003 => array(
    '06:00-12:00' => array(3 => 4),
    '12:00-18:00' => array(3 => 1))
); // EDIT: Added a faked resultset

$hour = date('H',time());
switch(true)
{

    case $hour >= 18: // '18:00-00:00'

        $sums = SAPSums($SAPs,$count,'18:00-00:00');
        assignView($sums,$count);
        break;

    case $hour >= 12: // '12:00-18:00'

        $sums = SAPSums($SAPs,$count,'12:00-18:00');
        assignView($sums,$count);
        break;

    case $hour >= 6:  // '06:00-12:00'

        $sums = SAPSums($SAPs,$count,'06:00-12:00');
        assignView($sums,$count);
        break;

    default:          // '00:00-06:00'

        $sums = SAPSums($SAPs,$count,'00:00-06:00');
        assignView($sums,$count);

}

// functions below ###############################################################

function findKey($haystack,$needle) // If key exists in multidimentional array
{

    foreach($haystack as $key => $item)
    {

        if($key == $needle)
        {

            echo 'yes, it exists';
            return true;

        }
        elseif(is_array($item) && findKey($item,$needle))
        {

            return true;

        }

    }

    return false;

}

// Sum up the count from the different prio categories
function SAPSums($SAPs,$count,$segment)
{

    foreach($SAPs as $SAPID)
    {

        $sum1 += array_sum(array_column_recursive($count[$SAPID][$segment],1));
        $sum2 += array_sum(array_column_recursive($count[$SAPID][$segment],2));
        $sum3 += array_sum(array_column_recursive($count[$SAPID][$segment],3));

    }
    return array($sum1,$sum2,$sum3);

}

function assignView($sums,$count)
{

    if($sums[0] < ($sums[2]*2))
    {

        $giveViewTo = 1;
        echo "prio 1";

    }
    elseif($sums[1] < ($sums[2]*2))
    {

        echo findKey($count,2);
        $giveViewTo = 2;
        echo "prio 2";

    }
    else
    {

        $giveViewTo = 3;
        echo "prio 3";

    }
    return "give to: {$giveViewTo}<br>";

}

function array_column_recursive(array $haystack,$needle)
{

    $found = [];
    array_walk_recursive($haystack,
        function($value, $key) use (&$found, $needle)
        {

            if($key == $needle) $found[] = $value;

        }

    );
    return $found;

}

1 个答案:

答案 0 :(得分:0)

今天早上,在我上班的路上,我很感动。由于问题本质上来自于很多信息,因此我只能将当前时间段排除掉,然后问题就消失了。

现在。这项工作可以解决此特定问题,但是例如在处理每日统计数据时,我可以很容易地将原始问题在其他情况下视为有效,因此我不会将其标记为已解决,并且仍在寻找答案。