array php add element sort by key code example
Example 1: php sort array by key
$weight = [
'Pete' => 75,
'Benjamin' => 89,
'Jonathan' => 101
];
ksort($weight);
Example 2: php sort array of array by key
$inventory = [
['price' => 10.99, 'product' => 'foo 1'],
['price' => 5.99, 'product' => 'foo 2'],
['price' => 100, 'product' => 'foo 3'],
];
$price = array_column($inventory, 'price');
array_multisort($price, SORT_DESC, $inventory);