PHPStan seems to assume that sscanf() returns an array of size 1.

Since PHPStan 1.7.15 (no problem with 1.7.14). Could be due to phpstan/phpstan-src#1434

Code snippet that reproduces the problem

https://phpstan.org/r/99167899-8984-4874-b79d-8834ff508aa9

Running that code in PHP returns:

Success
Array
(
    [0] => hello
    [1] => world
    [2] => 
)