ImpossibleLooseComparison

A loose comparison (==) between values of incompatible types that can never be true. This indicates dead code or a logic error.

Example

<?php
function checkValue($value): bool {
    if ($value == null && $value === false) {
        // This can never be true - null and false have different meanings
        return true;
    }
    return false;
}

How to fix

Review the comparison logic and remove impossible conditions:

<?php
function checkValue($value): bool {
    // Check for null OR false separately
    if ($value === null || $value === false) {
        return true;
    }
    return false;
}