Is there a better PHP way for getting default value by key from array (dictionary)?

Question

In Python one can do:

foo = {}
assert foo.get(\'bar\', \'baz\') == \'baz\'

In PHP one can go for a trinary operator as in:<

Answer 1

If you enumerate the default values by key in an array, it can be done this way:

$foo = array('a' => 1, 'b' => 2);
$defaults = array('b' => 55, 'c' => 44);

$foo = array_merge($defaults, $foo);

print_r($foo);

Which results in:

Array
(
    [b] => 2
    [c] => 44
    [a] => 1
)

The more key/value pairs that you enumerate defaults for, the better the code-golf becomes.