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php image rotation question

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Hi all

I have the following script which takes an image and rotates it,

[code]$filename = 'images/help.jpg';
$degrees = 350;
$source = imagecreatefromjpeg($filename);
$rotate = imagerotate($source, $degrees, 0);
$image = imagejpeg($rotate,"",$quality);[/code]

The problem is that im left with a black background and I cannot seem to turn the background transparent.

Can anyone help?

Thanks in advance


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imagerotate()'s third parameter defines the background color:

[!--quoteo--][div class=\'quotetop\']QUOTE[/div][div class=\'quotemain\'][!--quotec--]resource imagerotate ( resource src_im, float angle, int bgd_color )[/quote]
[a href=\"http://www.php.net/imagerotate\" target=\"_blank\"]http://www.php.net/imagerotate[/a]

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