PHP

php sort multidimensional array

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

$prices = array_column($inventory, 'price');
$inventory_prices = array_multisort($prices, SORT_DESC, $inventory);

$types = array_map(strtolower, array_column($inventory, 'type'));
$inventory_types = array_multisort($types, SORT_ASC, $inventory);

php sort multidimensional array

array_multisort(array_map(function($element) {
      return $element['order'];
  }, $array), SORT_ASC, $array);

print_r($array);

sort multi array php

		$keys = array_column($array, 'Price');

		array_multisort($keys, SORT_ASC, $array);
	
		print_r($array);

sort multidimensional array php by key

$people= array(
    array("age"=>54,"first_name"=>"bob","last_name"=>"Dillion"),
    array("age"=>22,"first_name"=>"darah","last_name"=>"Harvard"),
    array("age"=>31,"first_name"=>"ahuck","last_name"=>"Bartowski"),
);

echo '<PRE>';
print_r($people);


$keys = array_column($people, 'first_name');
print_r($keys);

array_multisort($keys, SORT_ASC, $people);

print_r($people);

php sort multidimensional array by value

usort($myArray, function($a, $b) {
    return $a['order'] <=> $b['order'];
});

php sort multidimensional array by value

function sortByOrder($a, $b) {
    return $a['order'] - $b['order'];
}

usort($myArray, 'sortByOrder');

php sort multidimensional array by key

function buildSorter($key) {
    return function ($a, $b) use ($key) {
        return strnatcmp($a[$key], $b[$key]);
    };
}

usort($array, buildSorter('key_b'));