I'm customizing a module in Drupal and in that module I'd like to refresh the current page right after an if statement, how can I refresh the current page in PHP
You can't in PHP if you've already outputted something (since all headers
must be sent before output begins).
If you haven't outputted:
header('Location:: current_page_url');
or
header("Refresh:0");
Better way is to do it through Javascript with the window
object
$window.location.reload();