Question

I get this array from a function (var_dump()):

...{ [0]=> string(7) "user_id" } [1]=> array(1) { [0]=> string(7) "user_id" } [2]...

When I try to separate the values with:

$var2 = $var[‘user_id’]

I get the error “undefined index ‘user_id'”, even though, as you can see, the name of the value is “user_id”, and I’ve checked my database a hundred times, and that IS the name of the index.

What other possible sources of error are there?

I appreciate any help!
Thank you in advance!

function get_subscribitions($user)
{

$user = mysql_real_escape_string ($user);

  $sql = "SELECT * FROM `subscribe` WHERE subscriber = '$user'";

 $result = mysql_query($sql);

  $rows = array();

  while ($row = mysql_fetch_assoc($result)) {
      $rows[] = $row;
  }

  mysql_free_result($result);

  return $rows;

Can anyone pinpoint where in the above code, I make the mistake leading to this problem?
Thanks.

Answer 1

The array key 0 contains a string called 'user_id' but there is no key named 'user_id', hence why you’re getting the error.

I suggest you take a look at how you’re compiling this data (query results perhaps?).