Undefined error in codeigniter-Collection of common programming errors

I’m building a file uploader that gets IPTC data from the image and inserts it into a db but I keep getting this error:

> A PHP Error was encountered
> 
> Severity: Notice
> 
> Message: Undefined index: 2#120
> 
> Filename: controllers/upload.php
> 
> Line Number: 63

Here’s the line from the controller:

$iptc_description = $iptc["2#120"];

The script works perfectly as it’s supposed to, but it keeps throwing up this error and I can’t figure out why.

1. Replace that line with (your using the variable before its set):

   $iptc_description = (isset($iptc["2#120"]))?$iptc["2#120"]:null;
   

   Or if you don’t like one-liners:

   $iptc_description = null;
   if (isset($iptc["2#120"])) {
       $iptc_description = $iptc["2#120"];
   }
   

Originally posted 2013-11-09 21:06:16.