PHP Warning: call_user_func_array() on wp-includes/plugin.php line 406

Hope this isn’t a dupe, I don’t think so. Love the plugin, include it in themes religiously – a big thanks.

I have an issue I don’t seem to be able to fix, OT still works but is throwing numerous PHP warnings in the media uploader when used in conjunction with another plugin (https://www.ads-software.com/extend/plugins/wp-filebase/).

The error is;

Warning: call_user_func_array() [function.call-user-func-array]: First argument is expected to be a valid callback, 'ot_after_theme_options_save' was given in xxx\wp-includes\plugin.php on line 406

And it is thrown for the following hooks in ot-loader.php;

/* prepares the after save do_action */
      add_action( 'admin_init', array( &$this, 'ot_after_theme_options_save' ), 1 );

      /* default settings */
      add_action( 'admin_init', 'ot_default_settings', 2 );

      /* add xml to upload filetypes array */
      add_action( 'admin_init', 'ot_add_xml_to_upload_filetypes', 3 );

      /* import */
      add_action( 'admin_init', 'ot_import', 4 );

      /* export */
      add_action( 'admin_init', 'ot_export', 5 );

      /* save settings */
      add_action( 'admin_init', 'ot_save_settings', 6 );

      /* save layouts */
      add_action( 'admin_init', 'ot_modify_layouts', 7 );

      /* create media post */
      add_action( 'admin_init', 'ot_create_media_post', 8 );

Looking into it, it seems to relate to this issue,

https://wordpress.stackexchange.com/questions/82245/warning-error-in-admin-panel-while-developing-theme

And whilst Filebase Pro is handling things in the way shown in the Stack above, Options Tree isn’t (which is why I’ve posted here – rightly or wrongly). I’ve tried all kinds of juggling to redo it so it will handle the hook in the same manner, however this;

/* prepares the after save do_action */
add_action( 'admin_init', array( &$this, 'ot_after_theme_options_save' ), 1 );

Will throw the following warning in the backend no matter what;

First argument is expected to be a valid callback, 'OT_Loader::ot_after_theme_options_save' was given in C:\wamp\www\bartlett\wp-includes\plugin.php on line 406

I’ve tried on PHP 5.2.x and 5.3.x, no joy. It’s not a huge disaster fo me as I’ll have the error reporting off on the live site but it’s one of those things that eats away at you. I hoped you might have some insight. Thanks for any help and the thanks again for the plugin Derek.

https://www.ads-software.com/extend/plugins/option-tree/