Is it a poor idea for readability or maintainability to use functions in conditionals as in the following example?if (move_uploaded_file($file['tmp_name'], $destinationFile)) {    // Do work}Versus the more verbose$moveFileSuccessful = move_uploaded_file($file['tmp_name'], $destinationFile);if ($moveFileSuccessful) {    // Do work}This is PHP, but the question applies to all languages.
Functions inside conditionals
coding style;language agnostic