Ticket #5297: testglobals.php

<?php
/*
Plugin Name: Test Globals Plugin
*/

class testplugin {
  function save () {
    $GLOBALS['test'] = true;
  }

  function notices () {
    echo isset($GLOBALS['test'])? 'good' : 'bad';
  }
}

$testplugin = new testplugin();

add_action('content_save_pre', array($testplugin, 'save'));
add_action('admin_notices', array($testplugin, 'notices'));

?>