Sort array by object property in PHP?

Question

If I have an object as such:

class Person {
  var $age;
  function __construct($age) {
    $this->age = $age;
  }
}

and I have any array

Answer 1

You can do it with ouzo goodies:

$result = Arrays::sort(array($person1, $person2), Comparator::compareBy('age'));

http://ouzo.readthedocs.org/en/latest/utils/comparators.html