How to get URL argument in Page body by PHP?

Question

On a Drupal site, PHP code is enabled for Page body content. How can I get the argument and its value in PHP code? For example, I\'d like to get ref and 3

Answer 1

You can use drupal_get_query_parameters() as follows:

$params = drupal_get_query_parameters();

if (isset($params['ref']) && is_numeric($params['ref'])) {
  var_dump(check_plain($params['ref']));
}