Associative array returns undefined index even though index is clearly defined

Question

I have the following (stripped down) code:

$question = fetch_question($conn, $current_question);
var_dump($question);
echo $question["_id"];

fetch_question() uses $conn database connection to retrieve an array on $current_question.

This gives me the following output:

array(1) {
  [0]=>
  array(7) {
    ["_id"]=>
    string(1) "1"
    ["question"]=>
    string(10) "What's 2+2"
    ["answer1"]=>
    string(1) "1"
    ["answer2"]=>
    string(1) "2"
    ["answer3"]=>
    string(1) "3"
    ["answer4"]=>
    string(1) "4"
    ["is_right"]=>
    string(1) "4"
  }
}
<br />
<b>Notice</b>:  Undefined index: _id in <b>D:\Websites\htdocs\tests\general.php</b> on line <b>76</b><br />

Now I find this very peculiar, _id is clearly defined I have no idea what makes PHP behave like this!

Any help would be appreciated!

Madara's Ghost · Accepted Answer · 2012-04-12 19:47:44Z

1

Only after seeing the output here on StackOverflow have I realized that I actually needed $question[0]["_id"].

Well, we all know these little pest peeves.

answered Apr 12, 2012 at 19:47

Madara's Ghost

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