我有以下数组:
Array
(
[0] => stdClass Object
(
[timestamp] => 1
[id] => 10
)
[1] => stdClass Object
(
[timestamp] => 123
[id] => 1
)
[2] => stdClass Object
(
[timestamp] => 123
[id] => 2
)
)
我目前正在使用以下代码根据时间戳属性对数组进行排序:
function sort_comments_by_timestamp(&$comments, $prop)
{
usort($comments, function($a, $b) use ($prop) {
return $a->$prop < $b->$prop ? 1 : -1;
});
}
当时间戳相同时,我如何按照id
降序排序?