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4.6 Alternatives to streaming back the image

If you like to save the image directly to a file instead of streaming it back to the browser then you just have to specify an absolute filename in the final call to Graph::Stroke(), i.e.

 $graph-> Stroke( "/usr/home/peter/images/result2002.png");

Please note that the user running as Apache/PHP must have write access to the specified directory.

There are also two predefined filenames which have special meaning.

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