how to change value in php array code example

Example 1: update values in array in php

//With Keys
$array['key3'] = 'new value';
//Without Knowing Keys
$array[2] = 'new value';

Example 2: 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>";