WordPress Version: 4.4
/**
* Displays the given administration message.
*
* @since 2.1.0
*
* @param string|WP_Error $message
*/
function show_message($message)
{
if (is_wp_error($message)) {
if ($message->get_error_data() && is_string($message->get_error_data())) {
$message = $message->get_error_message() . ': ' . $message->get_error_data();
} else {
$message = $message->get_error_message();
}
}
echo "<p>{$message}</p>\n";
wp_ob_end_flush_all();
flush();
}