Title: Warning messages: "Warning: array_keys() [function.array-keys]:"
Last modified: August 21, 2016

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# Warning messages: "Warning: array_keys() [function.array-keys]:"

 *  Resolved [ypeynaud](https://wordpress.org/support/users/ypeynaud/)
 * (@ypeynaud)
 * [12 years, 6 months ago](https://wordpress.org/support/topic/warning-messages-warning-array_keys-functionarray-keys/)
 * Hello,
    I just updated your (fantastic!) WP Symposium plugin to the latest version
   but I now get the following message appearing below the toolbar on any page:
 * >  Warning: array_keys() [function.array-keys]: The first argument should be 
   > an array in (…)/wp-content/plugins/wp-symposium-toolbar/wp-symposium-toolbar_functions.
   > php on line 169
   > Warning: array_keys() [function.array-keys]: The first argument should be an
   > array in (…)/wp-content/plugins/wp-symposium-toolbar/wp-symposium-toolbar_functions.
   > php on line 171
 * Note that I don’t use WP Symposium, if this may be of help…
 * Could you advise and/or tell me how to backtrack to previous version?
 * Many thanks in advance,
    Yves.
 * [http://wordpress.org/plugins/wp-symposium-toolbar/](http://wordpress.org/plugins/wp-symposium-toolbar/)

Viewing 5 replies - 1 through 5 (of 5 total)

 *  Plugin Author [Guillaume Assire](https://wordpress.org/support/users/alphagolf_fr/)
 * (@alphagolf_fr)
 * [12 years, 6 months ago](https://wordpress.org/support/topic/warning-messages-warning-array_keys-functionarray-keys/#post-4405321)
 * Hi
 * Sorry to read about this, I’ll upload a fix in the coming hours.
 * Otherwise, if it can’t wait you may get the previous release from the plugin 
   page [here](http://downloads.wordpress.org/plugin/wp-symposium-toolbar.0.22.0.zip).
 * AlphaGolf
 *  Plugin Author [Guillaume Assire](https://wordpress.org/support/users/alphagolf_fr/)
 * (@alphagolf_fr)
 * [12 years, 6 months ago](https://wordpress.org/support/topic/warning-messages-warning-array_keys-functionarray-keys/#post-4405394)
 * Just uploaded a v0.23.1, could you please confirm that it fixes this issue ?
 * AG
 *  Thread Starter [ypeynaud](https://wordpress.org/support/users/ypeynaud/)
 * (@ypeynaud)
 * [12 years, 6 months ago](https://wordpress.org/support/topic/warning-messages-warning-array_keys-functionarray-keys/#post-4405473)
 * Almost! Actually it is now working fine for logged-in users, but the problem 
   persists for unlogged visitors.
    Exactly the same error message. Showing up immediately,
   even before the rest of the page displays… Yves.
 *  Plugin Author [Guillaume Assire](https://wordpress.org/support/users/alphagolf_fr/)
 * (@alphagolf_fr)
 * [12 years, 6 months ago](https://wordpress.org/support/topic/warning-messages-warning-array_keys-functionarray-keys/#post-4405476)
 * What is most annoying is that we cannot replicate this, on any of our installs.
   I have to confess, I was blind while fixing this 😉
 * I would appreciate if you could give me a little insight about your site: which
   version of WordPress, is this multisite, which server it’s on, any specificity
   that might explain why it happens on your site and not on any of the multiple
   setups we have, my friend Louis at Central Geek and myself, and on which we test
   the plugin before updating it here.
 * All this out of curiosity, because as far as the bug is concerned, I will eventually
   solve it one way or another. It’s just I’d like to ensure our tests are as exhaustive
   as possible. Thanks!
 *  Thread Starter [ypeynaud](https://wordpress.org/support/users/ypeynaud/)
 * (@ypeynaud)
 * [12 years, 6 months ago](https://wordpress.org/support/topic/warning-messages-warning-array_keys-functionarray-keys/#post-4405480)
 * OK, sorry: your patch actually DID solve the problem for visitors also. I use
   WP Supercache and the residual problem vanished by clearing the cache.
 * Thanks for great support!
    Yves.

Viewing 5 replies - 1 through 5 (of 5 total)

The topic ‘Warning messages: "Warning: array_keys() [function.array-keys]:"’ is 
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 * ![](https://s.w.org/plugins/geopattern-icon/wp-symposium-toolbar.svg)
 * [Plugin Name: WP Symposium Toolbar](https://wordpress.org/plugins/wp-symposium-toolbar/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/wp-symposium-toolbar/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/wp-symposium-toolbar/)
 * [Active Topics](https://wordpress.org/support/plugin/wp-symposium-toolbar/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/wp-symposium-toolbar/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/wp-symposium-toolbar/reviews/)

 * 5 replies
 * 2 participants
 * Last reply from: [ypeynaud](https://wordpress.org/support/users/ypeynaud/)
 * Last activity: [12 years, 6 months ago](https://wordpress.org/support/topic/warning-messages-warning-array_keys-functionarray-keys/#post-4405480)
 * Status: resolved