我们在学习php时候，我们可能为php的多维数组排序的问题感到困惑，文章这里就详细的给大家介绍一下php多维数组排序的原理。php也允许在多维数组上执行一些比较复杂的排序——例如，首先对一个嵌套数组使用一个普通的关键字进行排序，然后再根据另一个关键字进行排序。这与使用sql的order by语句对多个字段进行排序非常相似。为了能更好的明白它是如何工作的，请仔细看所举的例子：
- php $data = array(array("id" => 1, "name" => "Boney M", "rating" => 3),
- array("id" => 2, "name" => "Take That", "rating" => 1),
- array("id" => 3, "name" => "The Killers", "rating" => 4),
- array("id" => 4, "name" => "Lusain", "rating" => 3),
- ); foreach ($data as $key => $value) {
- $name[$key] = $value['name'];
- $rating[$key] = $value['rating'];
- }
- array_multisort($rating, $name, $data); print_r($data);?>
- Array ([0] => Array
- (
- [id] => 2
- [name] => Take That
- [rating] => 1
- ) [1] => Array
- (
- [id] => 1
- [name] => Boney M
- [rating] => 3
- )
- [2] => Array
- (
- [id] => 4
- [name] => Lusain
- [rating] => 3
- )
- [3] => Array
- (
- [id] => 3
- [name] => The Killers
- [rating] => 4
- )
- )
