Description:
------------
I don't really know if it's an issue in php 7.3.0 beta 1, but it used to work on php 7.2, 7.1, 7.0, 5.6 and 5.5.

This function call:

setcookie('name', 'value', (real)(time() + 1296000));

returns "false" and generates a warning: "Expiry date cannot have a year greater than 9999" when called in PHP 7.3.0 beta 1

If I change (real) to (int) it works fine:

setcookie('name', 'value', (int)(time() + 1296000));

Test script:
---------------
var_dump(setcookie('name', 'value', (real)(time() + 1296000)));

Expected result:
----------------
bool(true)

Actual result:
--------------
Warning: Expiry date cannot have a year greater than 9999

bool(false)