Bug #6085

Graph doesn't understand a numeric variable extracted from the GET method.

Details

Submitted	2005-11-27 10:28 UTC
From	sonugill at sonugill dot com
Assigned	nosey
Status	Closed
Package	Image_Graph
PHP Version	5.0.5
OS	Windows SERVER 2003
Roadmaps	(Not assigned)

Comments

[2005-11-27 10:28 UTC] sonugill at sonugill dot com

Description:
------------
PHP 5
IMAGE_GRAPH 0.7.1

I'm not sure if this a reported problem or not, but the issues seems to be of data type. I was using extracted $_GET variables to create my graph, but for some reason when passing in variables for width and height the graph class seemed to think there wasn't any width defined. This is the error I got in the browser.

Error:
Notice: Undefined variable: width in C:\PHP\PEAR\Image\Graph.php on line 176

The problem seems to be with the graph class not understanding $Width = '400' as the same as $Width = 400.

//Error code
$a = '400';
$b = '350';
Image_Graph::factory('graph', array($a, $b));

The above code produced the same error when using the GET array variables. Easy workaround for the above problem is to simply to do an add zero.

//Working Code
$a = '400' + 0;
$b = '350' + 0;
Image_Graph::factory('graph', array($a, $b));

Test script:
---------------
if(isset($_GET['WID']))
$Width = $_GET['WID'];

if(isset($_GET['HIT']))
$Height = $_GET['HIT'];

Image_Graph::factory('graph', array($Width, $Height));
...
...

Expected result:
----------------
I expected the graph class to understand the variables I submited.

Actual result:
--------------
Notice: Undefined variable: width in C:\PHP\PEAR\Image\Graph.php on line 176