Troubleshooting

<?php

// Data preparation
$query = "SELECT * FROM (SELECT UNIX_TIMESTAMP(time) AS time, sell AS sell, buy AS buy, id AS id FROM BTCUSD_MTG ORDER BY id DESC LIMIT 1440) AS t ORDER BY id ASC";
$rawdata = mysql_query($query, $db);

$data = array(
    array(1,2,3,4,5),
    array(1.2,2.3,3.1,4.1,5.3));


// content="text/plain; charset=utf-8"
require_once ('/home/mrx/jpgraph/src/jpgraph.php');
require_once ('/home/mrx/jpgraph/src/jpgraph_line.php');

 // Some (random) data
$ydata   = array(11, 3, 8, 12, 5, 1, 9, 13, 5, 7);
$ydata2  = array(1, 19, 15, 7, 22, 14, 5, 9, 21, 13 );

// Size of the overall graph
$width=900;
$height=600;

// Create the graph and set a scale.
// These two calls are always required
$graph = new Graph($width,$height);
$graph->SetScale('linlin');
//$graph->SetShadow();

// Setup margin and titles
//$graph->SetMargin(40,20,20,40);
$graph->title->Set('BTCUSD on Mt.Gox');
$graph->subtitle->Set('last day');
$graph->xaxis->title->Set('Time');
$graph->yaxis->title->Set('Price');

//$graph->yaxis->title->SetFont( FF_FONT1 , FS_BOLD );
//$graph->xaxis->title->SetFont( FF_FONT1 , FS_BOLD );

// Create the first data series
$lineplot=new LinePlot($ydata);
//$lineplot->SetWeight( 2 );   // Two pixel wide

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

// Create the second data series
$lineplot2=new LinePlot($ydata2);
//$lineplot2->SetWeight( 2 );   // Two pixel wide

// Add the second plot to the graph
$graph->Add($lineplot2);
$graph->img->SetImgFormat('png');
// Display the graph
$graph->Stroke();
?>