<?php class WP_Error extends stdClass {} $empty_array = array(); $array = array( 'cat1', 'cat2', 'cat3', 'cat1' ); $error = new WP_Error(); var_dump(array_unique($empty_array)); var_dump(array_unique($array)); var_dump(array_unique($error)); // This is the problem case.
You have javascript disabled. You will not be able to edit any code.
Value for `_results` contains invalid data `array`