In PHP why is true cast 1 and false cast an empty string?

Question

A boolean TRUE value is converted to the string "1". Boolean FALSE is converted to "" (the empty string).

Why isn't FALSE cast to "0"?

Answer 1

If you cast to an int, then to a string, it prints 0's..

$x=false;
print (string)(int)$x;

Prints 0. You can, of course, omit the string type cast as it's done by print anyway.