$a = 0;if (empty($a)) { echo “Variable a is empty”; } else {  echo “Variable is not empty”; } // True because $a is setif (isset($a)) {  echo “Variable ‘a’ is set”;} also you can use if (isset($a)) {echo “Variable ‘a’ is set.”;}

How To Remove the Category From the WordPress URL Go to your WordPress dashboard. Select Setting >> Permalinks>> Category base > . Press only dot . and Save changes’. To change your bases of tags and categories, go to your admin dashboard, and then go to Settings > Permalinks> Category base> Press . (dot) and Save You […]