Fetching an array value and removing it

So I have this array:

$arr = ('a' => 343, 'b' => 34, 'c' => 65, 'd' => 465);

which could also be

$arr = ('a' => 343, 'b' => 34, 'c' => 65);

Can the following code be improved into one line?

if(isset($arr['d'])) $something = $arr['d'];
unset($arr['d']);

if(isset($arr['d'])) $something = $arr['d'];
unset($arr['d']);

Well... If arr['d'] is not set, then you don't need to unset it. So this will save an unnecessary call sometimes:

if(isset($arr['d']))
{
    $something = $arr['d'];
    unset($arr['d']);
}

If you don't care for $something, then you can just do

unset($arr['d']);

Which is then one line. You could also write

if (isset($arr['d']) && ($something = $arr['d']) !== null) unset($ar['d']);

That is one line as well, but will fail to do what you like if $something is null. And from the point of readability it's questionable whether this is an improvement.

StackExchange Code Review Q#3113, answer score: 4