Wordpress - how to get php variable on page from sidebar

Question

I wrote my own page template for my Wordpress page, now I want to change sidebar.php to insert a small menu whenever this page template is loaded.

// sidebar.php
if ( isset($event_name) ) {
  // do something
}

But apparently sidebar.php does not recognize the $ event_name variable.

How can i solve this?

Answer 1

While I'm not familiar with how WordPress implements templates, have you tried declaring a variable globalon the sidebar page?

Answer 2

: / " WordPress Codex, .