how to update associative array in php code example

Example: how to re assign value of associative array after assign in php

$employee = [
	"bill" => 25,
    "steve" => 36,
    "alice"=>44
];

$employee["alice"] = 48;
$employee["musk"] = 42;//to add 
echo "<pre>";
print_r ($employee);
echo "</pre>";