如何通过值对多维数组进行排序? 我有如下数据。
如何按照降序排序来显示结果,以便结果如下,谢谢:
$num_a = $_POST['num_a']; //get the value data by array num_a[]
$num_b = $_POST['num_b']; //get the value data by array num_b[]
$score = $_POST['score']; //get the value data by array socre[]
for ($i=0; $i < count($num_a); $i++) {
//set total data num_a and num_b with value from score
$ring[($num_a[$i])][($num_b[$i])] = $score[$i];
}
print_r($ring);
//output
Array
(
[0] => Array
(
[1] => 5
)
[1] => Array
(
[2] => 1
)
[2] => Array
(
[0] => 3
)
)
如何按照降序排序来显示结果,以便结果如下,谢谢:
我想要的输出
print_r($ring);
Array
(
[0] => Array
(
[1] => 5
)
[2] => Array
(
[0] => 3
)
[1] => Array
(
[2] => 1
)
)