title: WordPress: How to get plugin options from other plugin page
body: <p>I'm writing a WordPress plugin which has a widget, and that widget displays a link on the page like e.g.:</p>
  
  <pre><code>&lt;a href="&lt;?php echo plugins_url('/ext_page.php', __FILE__); ?&gt;"&gt;Link&lt;/a&gt;
  </code></pre>
  
  <p>Now in the /ext_page.php page, I need to get options from the plugin itself like e.g.:</p>
  
  <pre><code>$options = get_option('my_plugin_options');
  </code></pre>
  
  <p>But the function get_option seems not working in that page, is there any other way to get the options?</p>
  
  <p>Please kindly advise,
  Thanks!</p>