spacing does not show up between words in top menu??

Hello how can I resolve this?

I have a top menu with many text links. Home, My bids, register, how it works

‘My bids’ shows up fine on the website with the space but ‘how it works’ doesnt show up properly. In my php code when I type how_it_works it shows up like that with the underscore and when I type ‘how it works’ without spaces I get a syntax error.

How do I get ‘How it works’ to show up properly?

<?php echo $SITE_URL; ?>

Sponsor our Newsletter | Privacy Policy | Terms of Service