It seems you need to use $errors = new \WP_Error();
in your code, since WP_Error
isn’t part of your namespace.
I ran a quick test on my machine, using wp-cli commands:
Using new WP_Error()
:
% wp eval 'namespace PJ\NS\Test; $x = new WP_Error(); var_dump( $x );'
Fatal error: Uncaught Error: Class 'PJ\NS\Test\WP_Error' not found in phar:///usr/local/bin/wp/vendor/wp-cli/eval-command/src/Eval_Command.php(37) : eval()'d code:1
Stack trace:
#0 phar:///usr/local/bin/wp/vendor/wp-cli/eval-command/src/Eval_Command.php(37): eval()
#1 [internal function]: Eval_Command->__invoke(Array, Array)
#2 phar:///usr/local/bin/wp/vendor/wp-cli/wp-cli/php/WP_CLI/Dispatcher/CommandFactory.php(98): call_user_func(Array, Array, Array)
#3 [internal function]: WP_CLI\Dispatcher\CommandFactory::WP_CLI\Dispatcher\{closure}(Array, Array)
#4 phar:///usr/local/bin/wp/vendor/wp-cli/wp-cli/php/WP_CLI/Dispatcher/Subcommand.php(451): call_user_func(Object(Closure), Array, Array)
#5 phar:///usr/local/bin/wp/vendor/wp-cli/wp-cli/php/WP_CLI/Runner.php(371): WP_CLI\Dispatcher\Subcommand->invoke(Array, Array, Array)
#6 phar:///usr/local/bin/wp/vendor/wp-cli/wp-cli/php/WP_CLI/Runner.php(394): WP_CLI\Runner->run_command(Array, Array)
#7 phar:///usr/local/bin/wp/vendor/wp-cli/wp-cli/php/WP_CLI/Runner.php(87): WP_CLI\Runne in phar:///usr/local/bin/wp/vendor/wp-cli/eval-command/src/Eval_Command.php(37) : eval()'d code on line 1
Error: There has been a critical error on your website.Learn more about debugging in WordPress. There has been a critical error on your website.
Using new \WP_Error()
:
% wp eval 'namespace PJ\NS\Test; $x = new \WP_Error(); var_dump( $x );'
object(WP_Error)#1516 (2) {
["errors"]=>
array(0) {
}
["error_data"]=>
array(0) {
}
}