基本上我有如下设置:
Array ( [0] => Array ( [0] => stdClass Object ( [nid] => 1 [title] => title1 [uid] => 1 [parent] => 0 [weight] => -15 [name] => name1 [value] => 0 ) [1] => stdClass Object ( [nid] => 2 [title] => title2 [uid] => 1 [parent] => 0 [weight] => -7 [name] => name2 [value] => 100 ) [2] => stdClass Object ( [nid] => 3 [title] => title3 [uid] => 2 [parent] => 0 [weight] => -1 [name] => name3 [value] => 0 ) [3] => stdClass Object ( [nid] => 4 [title] => title4 [uid] => 2 [parent] => 0 [weight] => 1 [name] => name4 [value] => 80 ) ) )
我需要的是一种通过Object中的[value]键对父数组中的所有数组进行排序的方法.我用usort和不同的方法尝试了大约2天,但我似乎无法理解它.[value]键的范围从0到100,我需要按降序排序所有数组(IE:100降至0).
使用usort:
function cmp($a, $b) { if ($a->value == $b->value) { return 0; } else { return $a->value < $b->value ? 1 : -1; // reverse order } } usort($arr, 'cmp');