WordPress Development Stack Exchange is a question and answer site for WordPress developers and administrators. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

When i install this plugin (oQey gallery) i report some errors like:

1) Notice: Undefined index: type in \wp-content\plugins\oqey-gallery\gallcore.php on line 252

On line 252:

if($_GET['type'] == "oqeygallery"){ include ("insert_in_post.php"); }

2) Notice: has_cap was called with an argument that is deprecated since version 2.0! Usage of user levels by plugins and themes is deprecated. Use roles and capabilities instead. in C:\xampp\htdocs\website\wp-includes\functions.php on line 2723

on line 2723:

trigger_error( sprintf( __('%1$s was called with an argument that is <strong>deprecated</strong> since version %2$s! %3$s'), $function, $version, $message ) );

3) Notice: Undefined index: page in \wp-content\plugins\oqey-gallery\oqeygallery.php on line 346

on line 346:

 if(is_admin() && ($_GET['page']=='oQeysettings' || $_GET['page']=='oQeyGalleries' || $_GET['page']=='oQeySkins' || $_GET['page']=='oQeyMusic' || $_GET['page']=='oQeyTrash' || $_GET['page']=='oQeyVideo' ) ){
share|improve this question
up vote 2 down vote accepted

Undefined Index

The first and third are the same problem:

if($_GET['type'] == "oqeygallery"){}


if(is_admin() && ($_GET['page']=='oQeysettings'...

Basically are:

if ( $_GET['foo'] == 'bar' )

The problme is that $_GET['foo'] is not set. That is, the $_GET array does not have a 'foo' key.

The solution is to wrap $_GET['foo'] in an isset() conditional:

if ( isset( $_GET['foo'] ) && 'bar' == $_GET['foo'] )

Deprecated cap

The second issue doesn't derive from the code you've quoted. Somewhere in the Plugin, a function is using an invalid cap as a parameter. You'll need to look through the plugin files, to find where the invalid cap - likely an integer instead of a capability - is being used as a parameter.


Found one: gallcore.php:

add_menu_page('oQey Gallery plugin', 'oQey Gallery', 8, $oqeym, 'oqey_top_page', $icon);    

That 8, is a user cap, but is invalid (as of several WordPress versions prior), and needs to be replaced with an actual capability, such as 'manage_options'

share|improve this answer
you give me useful feedback, but i can't find the solution and solve my problem. Finally i use another plugin like lightbox, and this is enough for me. After that maybe is better to close this topic. Thanks again. – MikeD Feb 21 '13 at 0:14

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.