From PHPStan baseline: src/div.php lines 8527, 8574, 8583.
Snippet:
} elseif (true & 16) { = []; } ... if (true & 16) { [] = ; } else { -> = ; }
rue & 16 is always false (bitwise). Likely intended to use a flags variable (e.g., $flags & 16). Confirm and replace.