In addition to issue #246230, there are two more cases where I am forced to declare a variable to receive a value that I don't intend to use. I would like NetBeans not to flag these as a warning.

While they do have workarounds to avoid the hint, it's not acceptable to complicate the code to satisfy the IDE.

1. Iterating over the keys of an array.

    // don't need $value

    foreach ($array as $key => $value) {
        echo $key . PHP_EOL;
    }

Workaround: Use array_keys() to copy the keys to a new array of values.

    foreach (array_keys($array) as $key) {
        echo $key . PHP_EOL;
    }

2. Ignoring some values extracted using list().

    // don't need $id

    list($id, $author, $title) = explode(',',
        '123,Charles Lutwidge Dodgson,Alice in Wonderland');
    echo "$author is the author of $title\n";

Workaround: Assign the result of explode() to a temporary variable and extract only the values you need.

    $info = explode(...);
    $author = $info[1];
    $title = $info[2];
    echo "$author is the author of $title\n";