Trying to Get Property ‘slug’ of Non-object

Hello,

I am getting this error:TRYING TO GET PROPERTY ‘SLUG’ OF NON-OBJECT when running the following snippet that’s a Search function on my site:

 while (have_posts())
      {
         the_post();
         $crumbs = array();
         $ptype = 'page';
         $rank = $i;
         $source = get_field('source',$post->ID);
         $pdate = get_the_date();
         $ptitle = get_the_title();
         $url = get_the_permalink();
         $catinfo = get_the_category();
         
         // boost direct hits on title 
         if (strpos(strtolower($ptitle),strtolower($terms)) !== false) $rank -= 200;
         
         // boost by keyword
         $keywords = get_field('search_keywords',$post->ID);
         if (trim($keywords))
         {
            $keymatch = 0;
            $data = explode(',',strtolower($keywords));
            foreach ($data as $keyword)
            {
               if (trim($keyword) == strtolower($terms)) $keymatch++;
            }
            if ($keymatch) $rank -= 400;
         }
         
         // check against filters
         $filtered = 0;
         foreach ($url_filter as $key)
         {
            if (strpos($url,$key) !== false) $filtered++;
         }
         
         // news get own category and publication date
         if ($catinfo[0]->slug == 'news') 
         {
            $ptype = 'news';
            $pdate = get_the_date();
         }
...

It happens on the line `if ($catinfo[0]->slug == 'news')

Any reasons why this is happening? Thanks,

• This topic was modified 1 year, 6 months ago by bcworkz. Reason: No all caps please