PHP 使用子数组值按字母顺序排列数组

问题描述：

可能的重复:
如何在 PHP 中对数组和数据进行排序?
如何在 php 中对多维数组进行排序
 PHP 按子数组值排序数组
 PHP 按值对多维数组进行排序

我的数组看起来像:

Array(
    [0] => Array(
         [name] => Bill
         [age] => 15
    ),
    [1] => Array(
         [name] => Nina
         [age] => 21
    ),
    [2] => Array(
         [name] => Peter
         [age] => 17
    )
);

我想根据他们的名字按字母顺序对他们进行排序.我看到了 PHP Sort Array By SubArray Value 但它没有多大帮助.任何想法如何做到这一点?

I would like to sort them in alphabetic order based on their name. I saw PHP Sort Array By SubArray Value but it didn't help much. Any ideas how to do this?

答

这是你的答案，它 100% 有效，我已经测试过了.

Here is your answer and it works 100%, I've tested it.

<?php
$a = Array(
    1 => Array(
         'name' => 'Peter',
         'age' => 17
    ),
    0 => Array(
         'name' => 'Nina',
         'age' => 21
    ),
    2 => Array(
         'name' => 'Bill',
         'age' => 15
    ),
);
function compareByName($a, $b) {
  return strcmp($a["name"], $b["name"]);
}
usort($a, 'compareByName');
/* The next line is used for debugging, comment or delete it after testing */
print_r($a);

PHP 使用子数组值按字母顺序排列数组

相关推荐