Displaying Graphs

[cleeclee]

I'm having some troubles with displaying the graphs. It shows a broken image when i run it.

Below is my code. I have also attached a picture that should say that my gd library is working? Could i know which part of my code has to be corrected for it to display the graph i want?

<?php
header ("Content-type: image/png");
$x1=$_GET['x1'];
$x2=$_GET['x2'];
$y1=$_GET['y1'];
$y2=$_GET['y2'];

$im = @ImageCreate (100, 200)
or die ("Cannot Initialize new GD image stream");
$background_color = ImageColorAllocate ($im, 224, 234, 234);
$text_color = ImageColorAllocate ($im, 233, 14, 91);

// imageline ($im,$x1,$y1,$x2,$y2,$text_color);
imageline ($im,0,0,100,200,$text_color);
imageline ($im,100,0,0,200,$text_color);


ImagePng ($im);
?>

[scootstah]

Comment out:

header ("Content-type: image/png");

ImagePng ($im);

 

and remove the @ from ImageCreate(). Do you see any errors now?