JpGraph generating script not working with session and require_once

[Pooja11]

My php script is generating graph, but when i try to pass values from other php script through session or add "require_once(filename.php)" I get broken image and no error. Iam using JpGraph.

 

My db query php script(db.php)

    <?php

$link = mysql_connect('localhost', 'root', '');
if (!$link) {
    die('Could not connect: ' . mysql_error());
}

mysql_select_db('testcase');

$query = "SELECT COUNT(testRunId) FROM testrundetail GROUP BY platform"; 

$result = mysql_query($query) or die(mysql_error());

while($row = mysql_fetch_assoc($result)){

echo $row['COUNT(testRunId)'];
echo "\n";
$array[] = $row['COUNT(testRunId)'];
}
echo "\n";
echo "pooja";
echo $array[7];
?>

graph generating script -

<?php

require_once ('../jpgraph-3.5.0b1/src/jpgraph.php');
require_once ('../jpgraph-3.5.0b1/src/jpgraph_bar.php');

$Device = array('3500', '2530ya');
$ydata = array(19);      
// Width and height of the graph
$width = 500; $height = 500;

// Create a graph instance
$graph = new Graph($width,$height);

// Specify what scale we want to use,
// text = txt scale for the X-axis
// int = integer scale for the Y-axis
$graph->SetScale('textint');

// Setup a title for the graph
$graph->title->Set('No. of TC passed against particular device');

// Setup titles and X-axis labels
$graph->xaxis->title->Set('(Device)');
$graph->xaxis->SetTickLabels($Device);

// Setup Y-axis title
$graph->yaxis->title->Set('(No. of TC passed)');

// Create the bar plot
$barplot=new BarPlot($ydata);

// Add the plot to the graph
$graph->Add($barplot);

// Display the graph
$graph->StrokeCSIM();

?>

when i do - require_once('db.php') or when I try to pass the values of $array[] = $row['COUNT(testRunId)']; using session i dnt see the graph. I get broken image.

Any help ??

[jazzman1]

Do you see the graph when you hard-coding that value rather than using sql?