PHP二维数组按某个字段排序
//准备 二维数组 //按一个字段排序
foreach($rank as $key=>$val){ $dos[$key] = $val['timelength']; } array_multisort($dos,SORT_ASC,$rank); var_dump($rank);
//按两个字段先后排序
foreach($rank as $key=>$val){ $dos[$key] = $val['timelength']; $ds[$key] = $val['join_time']; } array_multisort($dos,SORT_ASC,$ds,SORT_ASC,$rank); var_dump($rank);