Click here to Skip to main content
14,327,564 members

Undefined index, error in my SQL?

Fexxi asked:

Open original thread
I was trying to avoid posting this here as I wanted to work it out for myself. Anyway, after a few days, I am starting to lose motivation and really want to pass this hurdle so I can move on to the next.

I am making an app for tarantula keepers that helps keep track of feeds, molts, re-homes etc.

I'm trying to echo out all of the spiders in the database next to the username of the logged in user. I will work out how I can make it visually appealing once I have a working function. I tried it with the column spiderName first but can't get it working and for the life of me, I can't work out how.

Here's my function. Let me know if you need anything else:

function showSpiders(){
    global $connection;
    $username = $_SESSION['username'];
    $query = "SELECT * FROM userspiders WHERE username = '{$username}'";
    $result = mysqli_query($connection, $query);
        while($row = mysqli_fetch_row($result)){
        $spiderName = $row['SpiderName'];
            echo "$spiderName";

What I have tried:

I have tried using "WHERE username LIKE" too, but no joy. I have also tried hard-coding the username variable.
Tags: SQL, PHP


When answering a question please:
  1. Read the question carefully.
  2. Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
  3. If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
  4. Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.
Let's work to help developers, not make them feel stupid.
Please note that all posts will be submitted under the The Code Project Open License (CPOL).

CodeProject, 503-250 Ferrand Drive Toronto Ontario, M3C 3G8 Canada +1 416-849-8900 x 100