image create error

[TravisB]

I am trying to draw a small red cirlce on top of an image using the following code:

<?php
Header("Content-type: image/jpeg");
$im = imagecreatefromjpeg(map720.jpg);
$red = imagecolorallocate($im, 255, 0, 0);
imagefilledellipse ($im, 70, 70, 5, 5, $red);
imagejpeg($im,'map',75);
imagedestroy($im);
?>

I get this error:
The image “http://www.mysite.com/map.php” cannot be displayed, because it contains errors.

map720.jpg is in the same directory. Any ideas?

[Mordecai]

You need quotes around your filenames, as they are strings.

[TravisB]

I did this:
$im = imagecreatefromjpeg("map720.jpg");
and still get the same error.

[Mordecai]

Take out the header() and see what it says.

[TravisB]

I took out the header line and now I do not get an error message, but I still do not get an image either. I tried viewing the php file itself and also using it in <img src="map.php"> in another page.

[TravisB]

Anybody have a solution to my problem? If not, can you point me to some good examples of working with images in php? I have not seen any good ones yet. I looked at php.net, but I need something that shows how all the different functions work together.