PHP函数array_multisort()实现多维数组排序的示例讲解_PHP教程

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);
?> 

这里，我们在$data数组中模拟了一个行和列数组。然后，我使用PHP函数array_multisort()对数据集合进行重排，首先是根据rating进行排序，然后，如果rating相等的话，再根据name排序。它的输出结果如下：

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

)

)

PHP函数array_multisort()是PHP中最有用的函数之一，它有非常广泛的应用范围。另外，就如你在例子中所看到的，它能对多个不相关的数组进行排序，也可以使用其中的一个元素作为下次排序的基础，还可以对数据库结果集进行排序。

http://www.bkjia.com/PHPjc/446344.htmlwww.bkjia.comtruehttp://www.bkjia.com/PHPjc/446344.htmlTechArticle对于 Listing J示例为我们具体说明了PHP函数array_multisort()的工作方式： ? php $ data = array (array("id"= 1,"name"= "BoneyM","rating"= 3), array("id"= 2,"name"=...