我有一个没有排序的城镇数组。我想按照省份的[类别] [3]和地区的[类别] [0]进行排序,并显示每个分组省及其地区,然后显示其下的城镇。所以,下面的数组:php数组排序和分组
Array
(
[0] => Array
(
[name] => Name One
[id] => 1
[link] => http://mylink1.com
[category] => Array
(
[0] => Region 1
[1] => Town 7
[2] => Country
[3] => Province 2
)
)
[1] => Array
(
[name] => Name Two
[id] => 2
[link] => http://mylink2.com
[category] => Array
(
[0] => Region 1
[1] => Town
[2] => Country
[3] => Province 3
)
)
[2] => Array
(
[[name] => Name Three
[id] => 3
[link] => http://mylink3.com
[category] => Array
(
[0] => Region 1
[1] => Town 5
[2] => Country
[3] => Province 2
)
)
[6] => Array
(
[name] => Name Four
[id] => 4
[link] => http://mylink4.com
[category] => Array
(
[0] => Region 1
[1] => Town 1
[2] => Country
[3] => Province 1
)
)
)
...应该结束这样看:
Country (all the same)
Province 1
- Region 1
- - Town 1 name, id, link
Province 2
- Region 1
- - Town 5 name, id, link
- - Town 7 name, id, link
Province 3
- Region 1
- - Town 1 name, id, link
省是主要分组因素,然后按地区分类,没有特定的顺序的城镇,但我猜按字母顺序是有道理的。
我设法按照类别使用此引用对数组进行排序:Sort Multi-dimensional Array by Value但无法想象如何进一步排序,而无需使用名称在循环中专门引用省。即
/// shortened version..
foreach($array as $key=>$value)...
if($value == "Province 1") : do something here with these matches
... etc
任何帮助,将不胜感激。
写一个比较函数,并用'usort()'http://php.net/manual/en/function.usort.php – alfasin 2012-08-01 22:34:46