找到数组组 php 中的最小值和最大值

Question

Array
(
    [0] => Array
        (
            [package] => LTE_15AGB
            [value] => Array
                (
                    [0] => 52690
                    [1] => 24700
                    [2] => 43972
                    [3] => 506417
                    [4] => 488125
                    [5] => 935918
                    [6] => 1322816
                    [7] => 1189040
                    [8] => 2805279
                    [9] => 2764825
                    [10] => 1688294
                    [11] => 1228812
                    [12] => 2232345
                    [13] => 3356143
                    [14] => 1193213
                    [15] => 167589
                    [16] => 1373104
                    [17] => 691411
                    [18] => 1398647
                    [19] => 5
                )

        )

    [1] => Array
        (
            [package] => LTE_15AGB_NT
            [value] => Array
                (
                    [0] => 953370
                    [1] => 151168
                    [2] => 37605
                    [3] => 428769
                    [4] => 755222
                    [5] => 1146719
                    [6] => 494289
                    [7] => 889002
                    [8] => 307200
                    [9] => 127972
                    [10] => 2764815
                    [11] => 1426224
                    [12] => 262669
                    [13] => 648757
                    [14] => 1485
                    [15] => 1202
                    [16] => 998
                    [17] => 1
                )

        )

)

这是我试过的：

$tmp = array();
foreach($arrayName as $arg){ 
    $tmp[$arg['package']][] = $arg['value']; 
}

$output = array();
foreach($tmp as $type => $labels){
    $output[] = array( 'package' => $type, 'value' => $labels, ); 
}

print_r(($output))

Answer 1

@Arebhy Sri，你应该在 php 中搜索数组，这就像基本问题。

$finalArray = [];    
foreach ($mainArr as  $subArr){
        $array = $subArr['value'];
        sort($array);

        $tempArray['minimum'] = reset($array);
        $tempArray['maximum'] = end($array);
        $tempArray['package'] = $subArr['package'];
        $finalArray[] = $tempArray;
    }



$finalArray //you can use

我正在使用简单的 foreach 和数组 reset() 和 end() 的两个函数。

reset(): Returns the value of the first array element, or FALSE if the array is empty.

end(): Returns the value of the last element or FALSE for empty array.

Answer 2

只需使用 min() 和 max() 函数即可。

您的代码:

foreach(array_column($array, 'value') as $key => $values){
    echo PHP_EOL . 'SubArray '. $key .' min = '. min($values) . ' and max value = '.  max($values);
}

输出是：

SubArray 0 min = 5 and max value = 3356143
SubArray 1 min = 1 and max value = 2764815

参考文献：

现场演示： https://eval.in/941702

Answer 3

试试这个：

foreach ($your_array as $subarr) {
    echo $subarr[package]." minimum = ";
    echo min($subarr[value])." and maximum = ";
    echo max($subarr[value])."<br>";
 }

这将输出每个包名称以及最小值和最大值。

找到数组组 php 中的最小值和最大值

find the minimum and maximum value in array group php

php

arrays

max

minimum

array-reduce