Notice: Undefined variable: count line 53

Question

 $count = 0;

$interpreter->addObserver(function(array $row) use (&$temperature) {
   $count+=1;

   if ($count < 3)  <----- not liking this 
   {

       return;

   }
    $temperature[] = array(
        'column1' => $row[16],
        'column2'  => $row[18],
    );
});

I am assuming it is a scope issue and I am unable to access the count from outside however I do need to count the rows in loop....thoughts?

I'm surprised you got this right for `$temperature` but not `$count`. — deceze, Jun 30 '13 at 10:16

score 3 · Accepted Answer · answered Jun 30 '13 at 01:09

3

You could refer to the global by adding the following as the first line of your function:

global $count;

However, does it need to be global? You might create a static variable, which will retain its value between your method calls:

static $count = 0;

answered Jun 30 '13 at 01:09

Andy G

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Since he's using an anonymous function `use ($count)` would be much better than `global`. – deceze Jun 30 '13 at 09:38
@deceze I haven't used [anonymous functions](http://php.net/manual/en/functions.anonymous.php) with PHP, but shouldn't $count be passed by reference for this example? `use (&$count, &$temperature)` – Andy G Jun 30 '13 at 10:01
Yes, sure, it'd be a reference in this case. – deceze Jun 30 '13 at 10:15

Notice: Undefined variable: count line 53

1 Answers1