Question

我有一个数组，每个数组有4个值

$array[0] = array('amount' => '98.60', 'typeA' => '98.52', 'typeB' => '58.52', 'typeC' => '90.2');
$array[1] = array('amount' => '55.80', 'typeA' => '25.36', 'typeB' => '36.54', 'typeC' => '36.99');
$array[2] = array('amount' => '42.68', 'typeA' => '64.26', 'typeB' => '65.87', 'typeC' => '99.24');
$array[3] = array('amount' => '812.3', 'typeA' => '36.27', 'typeB' => '23.25', 'typeC' => '94.35');

我需要根据每个键的最高值排列数组，序列为：

的typeA
的TypeB
typeC

所以最后我会看到哪个数量最多。

希望能在这里给予一些帮助，谢谢！

Answer 1

$ data = array（array（＆＃39; amount＆＃39; =＆gt;＆＃39; 98.60＆＃39;，＆＃39; typeA＆＃39; =＆gt;＆＃39; 98.52＆＃39;，＆＃39; typeB＆＃39; =＆gt;＆＃39; 58.52＆＃39;，＆＃39; typeC＆＃39; =＆gt;＆＃39; 90.2＆＃39;），数组（＆＃39;金额＆＃39; =＆gt;＆＃39; 55.80＆＃39;，＆＃39; typeA＆＃39; =＆gt;＆＃39; 25.36＆＃39;，＆＃39; typeB＆＃39 ; =＆gt;＆＃39; 36.54＆＃39;，＆＃39; typeC＆＃39; =＆gt;＆＃39; 36.99＆＃39;），数组（＆＃39;金额＆＃39; =＆gt;＆＃39; 42.68＆＃39;，＆＃39; typeA＆＃39; =＆gt;＆＃39; 64.26＆＃39;，＆＃39; typeB＆＃39; =＆gt;＆＃39; 65.87＆＃39; ，＆＃39; typeC＆＃39; =＆gt;＆＃39; 99.24＆＃39;），数组（＆＃39;数量＆＃39; =＆gt;＆＃39; 812.3＆＃39;，＆＃39; typeA＆＃39; =＆gt;＆＃39; 36.27＆＃39;，＆＃39; typeB＆＃39; =＆gt;＆＃39; 23.25＆＃39;，＆＃39; typeC＆＃39; =＆gt;＆＃39; 94.35＆＃39;））;

//获取列列表

foreach（$ data as $ key =＆gt; $ row）{

$volume[$key]  = $row['typeA'];
$edition[$key] = $row['typeB'];
$edition1[$key] = $row['typeC'];

}

array_multisort（$ volume，SORT_DESC，$ edition，SORT_DESC，$ edition1，SORT_DESC，$ data）;

回声＆＃39;＆＃39 ;;的print_r（$数据）;

Answer 2

array_multisort（）可用于一次对多个数组进行排序，或者按一个或多个维度对多维数组进行排序。

http://php.net/manual/en/function.array-multisort.php

<?php
    $data[] = array('volume' => 67, 'edition' => 2);
    $data[] = array('volume' => 86, 'edition' => 1);
    $data[] = array('volume' => 85, 'edition' => 6);
    $data[] = array('volume' => 98, 'edition' => 2);
    $data[] = array('volume' => 86, 'edition' => 6);
    $data[] = array('volume' => 67, 'edition' => 7);

    // Pass the array, followed by the column names and sort flags
    $sorted = array_orderby($data, 'volume', SORT_DESC, 'edition', SORT_ASC);
?>

这是另一个很好用的例子：

PHP sort array by two field values

PHP：具有多种排序的多维数组

2 个答案: