- assert(is_array($array));
- assert(isset($array[$key]));
- assert($array[$key] === $value);
+ assert(is_array($array), 'array[]=' . gettype($array), ',expected: array');
+ assert(isset($array[$key]), 'array[' . $key . '] not set.');
+ assert(($array[$key] === $value), ',array[' . $key . ']=' . $array[$key] . ',value=' . $value);