Sorting an Associative Array by Column Value

Given an array of associative arrays, the task is to sort the elements based on a specific column value.例如，考虑以下数组：

$inventory = array(
  array("type" => "fruit", "price" => 3.50),
  array("type" => "milk", "price" => 2.90),
  array("type" => "pork", "price" => 5.43),
);

= $ row ['price']; } array_multisort（$ price，sort_desc，$ neventory）;