PHP二维数组排序问题
PHP二维关联数组,按一个关键字升序,一个关键字降序,如何实现?
我知道能用系统函数array_multisort()简单实现
foreach($data as $key=>$value){ $win[$key] = $value['win']; $lose[$key] = $value['lose'];}array_multisort($win,SORT_ASC,$lose,SORT_DESC,$data);var_dump($data);
可是如果字段多了呢,求大神指导如何用其他的方法实现??
$data[] = array('win' => 67, 'lose' => 2);$data[] = array('win' => 86, 'lose' => 1);$data[] = array('win' => 85, 'lose' => 6);$data[] = array('win' => 98, 'lose' => 2);$data[] = array('win' => 86, 'lose' => 6);$data[] = array('win' => 67, 'lose' => 7);
回复讨论(解决方案)
无论用什么方法,都需要对每个排序键进行处理
预处理的 foreach 实际是在对排序键做索引
multisort参数继续列下去就是
但是,实际应用时,如果数据不多,基本是三列排序就决定了,第四项之后对顺序影响很微的

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