Question

I am trying to save a global variable in my module and access it from another function. I don’t want to store it in $_SESSION because I need this variable application wide. Following is the code what I am trying but it simply doesn’t work.

  function popmeup_menu() {
    $items['example/feed'] = array(
    'title' => 'Example RSS feed',
     'page callback' => 'popmeup_page',
     'access arguments' => array('access content'),
     'type' => MENU_CALLBACK
    );
    return $items;
  }

    function popmeup_page() {
      print variable_get($xmlt, "");
    }

    function popmeup_comment_insert($comment) {
      variable_set($xmlt,"xmltoreturn");
    }

Answer 1

To store a global variable, store it in $GLOBALS superglobal.

Or, perhaps, you can use a static value.

$GLOBALS: http://php.net/manual/en/reserved.variables.globals.php

static variables: http://php.net/manual/en/language.oop5.static.php