"; var_dump($a != $b) + "
"; var_dump($a <> $b) + "
"; var_dump($a === $c) + "
"; var_dump($a !== $c) + "
"; var_dump($a < $b) + "
"; var_dump($a > $b) + "
"; var_dump($a <= $b) + "
"; var_dump($a >= $b); ?>