In PHP, why use inval() rather than casting with (int)?

Question

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Is there any particular difference between intval and (int)?

These two statements are, afaik, identical:

$i = (int)getSomeValue();

and

$i = intval(getSomeValue());

Is there are good reason to choose one over the other (e.g. performance, treatment of nulls or objects, etc.)?

Answer 1

In contrast to casting, intval also allows non-decimal bases.

Additionally, every programmer knows functions and can easily look them up at php.net/function, whereas casts are not as widely known.