The error "Undefined variable $categories_list" is occurring because the $categories_list variable is not defined within the scope of the get_categories() function. To fix this, you can define the $categories_list variable as an empty array at the beginning of the get_categories() function, like lines 6,7, and the rest...
The error "Undefined variable $categories_list" is occurring because the $categories_list variable is not defined within the scope of the
get_categories()function. To fix this, you can define the$categories_listvariable as an empty array at the beginning of theget_categories()function, like lines 6,7, and the rest...