PHP and MySQL Web Development 4th Ed-tqw-_darksiderg

Solution Overview
801
Listing 32.6
Continued
pdf_fill_stroke($pdf);
} else {
pdf_stroke($pdf);
}
}
?>
The certificate produced using this script is shown in Figure 32.7. As you can see, it is
quite similar to the others, except that the border is simpler and the star looks a little different.The
reason is that they are drawn into the document rather than taken from an
existing clip art file.
Figure 32.7
The pdflib.php script draws the certificate into
a PDF document.
Now let’s look at some of the parts of this script that are different from the previous
examples.
Visitors need to get their own details on a certificate, so you create the document in
memory rather than in a file. If you wrote it to a file, you would need to worry about
mechanisms to create unique filenames, stop people from snooping into others’ certificates,
and determine a way to delete older certificate files to free hard drive space on the server.