PHP: Is_numeric returns false on 0 [closed]

Question

Is_numeric() as well as is_int() returns false if the value is 0. What can i do instead to verify that a specific value is numbers only in PHP?

Are we heading straight for the Regular Expressions camp, or are there some nice, handy feature for this out there already?

Thanks!

Answer 1

It is returning true for me in both cases:

var_dump(is_numeric(0));
var_dump(is_int(0));

Result:

bool(true)
bool(true)

Answer 2

Zero, as an integer is empty. So ensure that there is no check for empty before you check for Is_numeric() or is_int()