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1. Adam Capriola
   Member
   Posted 1 year ago #
   

   Got this error when I upgraded and try to view any non-cached page on my site:

   Fatal error: Using $this when not in object context in /var/www/html/pk/pkmncards.com/wp-content/plugins/wordpress-seo/frontend/class-frontend.php on line 91

   I'm going to downgrade back to the earlier version of the plugin until this is resolved. Not sure if it's something I did wrong, but in my functions.php I have been using stuff like this:

   $og_title = WPSEO_Frontend::title( false );
   $og_url = WPSEO_Frontend::canonical( false );
   $og_description = WPSEO_Frontend::metadesc( false );

   I've been using those to make some custom og tags.

   http://wordpress.org/extend/plugins/wordpress-seo/

2. Joost de Valk
   Member
   Plugin Author
   Posted 1 year ago #
   

   You shouldn't need to make custom og tags :) my plugin does them all, but yeah those function calls are causing the error.

3. Adam Capriola
   Member
   Posted 1 year ago #
   

   Thanks for the reply Joost! I wanted to fine tune some things (namely retrieving the thumbnail image with help from Get The Image), so I decided it would be best to generate them myself. How would I go about retrieving those values now?

4. Joost de Valk
   Member
   Plugin Author
   Posted 1 year ago #
   

   Don't know :) I'll leave that as an exercise to you :)

5. Adam Capriola
   Member
   Posted 1 year ago #
   

   Figured it out! :)

   Instead of:

   $og_title = WPSEO_Frontend::title( false );
   $og_url = WPSEO_Frontend::canonical( false );
   $og_description = WPSEO_Frontend::metadesc( false );

   Use:

   $object = new WPSEO_Frontend();
   $og_title = $object->title( false );
   $og_url = $object->canonical( false );
   $og_description = $object->metadesc( false );

6. Andrew Biss
   Member
   Posted 1 year ago #
   

   Thanks for the solution Adam.

   I use the WPSEO title() and metadesc() methods in some validation code I added to my theme. Instansiating the WPSEO_Frontend class as you suggested fixed the problem.

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