Notice: Undefined offset: 0 in

Question

I am getting this PHP error, what does it mean?

Notice: Undefined offset: 0 in 
C:\\xampp\\htdocs\\mywebsite\\reddit_vote_tut\\src\\votes.php on line 41
         


        

Answer 1

Use print_r($votes); to inspect the array $votes, you will see that key 0 does not exist there. It will return NULL and throw that error.