Re: logical AND assignments

The reason for "and" to have such a low precedence is so you can use it to perform conditional processing. You can probably achieve every effect using "&&", but you'd need more parentheses. More typically you would use "or" in this fashion: defined('DS') or define('DS', DIRECTORY_SEPARATOR); This checks if DS is defined and defines it if not. APP_ENV != 'prod' or die('This feature must not be used in production'); If we're in production, stop execution with an error. Using || here would try to logically or the string 'prod' with the return value of die(). Of course, die() doesn't return, so the script would exit no matter what APP_ENV was set to. David