Is NULL value on intval() = 0?

Question

Is NULL value on intval() = 0 ?

$value = NULL
$value2 = intval($value) // will be 0?

Is that correct, please let me know ?

Answer 1

Yes you can easy test that like this:

$value = NULL;
echo $value2 = intval($value) ;

Output:

0

Since:

The return value is the integer value of $value on success! And on failure 0.