PHP 多维数组排序学习

<?php

$content_a['score'] = 3;
$content_a['name'] = '3name';

$content_b['score'] = 6;
$content_b['name'] = '3name';

$list1[] = $content_a;
$list1[] = $content_b;

print_r($list1);

$content_c['score'] = 2;
$content_c['name'] = '2name';
$content_c['ccc'] = 'ccc2';

$content_d['score'] = 9;
$content_d['ddd'] = '9nameddd';

$list2[] = $content_c;
$list2[] = $content_d;

print_r($list2);
$new_list = array_merge($list1, $list2);

print_r($new_list);

foreach ($new_list as $key => $value) {


    $rating[$key] = $value['score'];

}

array_multisort($rating, $new_list);
#after sort
print_r($new_list);

?>

关键是 array_multisort 这个函数的用法。
打印出$rating 这个值，就明白了。