在多维数组中查找最大值并返回父键

Question

我有以下数组

Array
(
    [0] => Array
        (
            [title] => Title of company1
            [link] => https://companywebsite1.com
            [result] => 29.814814815
        )

    [1] => Array
        (
            [title] => Title of company2
            [link] => https://companywebsite2.com
            [result] => 143.723259762
        )

    [2] => Array
        (
            [title] => Title of company3
            [link] => https://companywebsite3.com
            [result] => 212.202797203
        )

    [3] => Array
        (
            [title] => Title of company4
            [link] => https://companywebsite4.com
            [result] => 127.884615385
        )

    [4] => Array
        (
            [title] => Title of company5
            [link] => https://companywebsite5.com
            [result] => 175.911330049
        )

)

如何获得具有最高结果值的公司的父密钥？ 例如，一个返回键2的函数，因为这里的最大值是212.20

我尝试了这个，但它只返回maxium值而不是键。如何获得具有最大结果值的公司的父密钥？

function maxMarks($array) {
    $max=0;
    foreach ($array as $Rsult) {
        $max=$Rsult['result']>$max  ?$Rsult['result']:$max;
    }
    return $max;
}
echo maxMarks($result);

Answer 1

尝试

function maxMarks($array) {
    $max=0;
    $max_key = '';
    foreach ($array as $key=>$Rsult) {
        $max = $Rsult['result'] > $max ? $Rsult['result'] : $max;
        $max_key = $Rsult['result'] > $max ? $key : $max_key;
    }
    return $max_key;
}
echo maxMarks($result);