PHP 根据对象属性进行对象数组的排序

根据对象属性进行对象数组的排序【转自 stackoverflow 】

Sort array of objects by object fields

Question

How can I sort this array of objects by one of its fields, like name or count ?

Array
(
[0] => stdClass Object
(
[ID] => 1
[name] => Mary Jane
[count] => 420
)

[1] => stdClass Object
(
[ID] => 2
[name] => Johnny
[count] => 234
)

[2] => stdClass Object
(
[ID] => 3
[name] => Kathy
[count] => 4354
)

....

Answer :

Use

usort

, here’s an example adapted from the manual:

function cmp($a, $b)
{
return strcmp($a->name, $b->name);
}

usort($your_data, "cmp");

edits imported from comments:

If you’re sorting the array from inside the class and your sorting function cmp is also defined inside the class, then use this:

usort($your_data, array($this, "cmp"))

参考：

https://stackoverflow.com/questions/4282413/sort-array-of-objects-by-object-fields#