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arrays - Optional parameters to PHP list function

I have a line like this in my code:

list($user_id, $name, $limit, $remaining, $reset) = explode('|', $user);

The last 3 parameters may or may not be there. Is there a function similar to list that will automatically ignore those last parameters if the array is smaller than expected?

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list($user_id, $name, $limit, $remaining, $reset)
    = array_pad(explode('|', $user), 5, null);

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