October 2010
Intermediate to advanced
448 pages
15h 29m
English
Content preview from Perl and Apache: Your visual blueprint for developing dynamic Web contentBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Chapter 18. CREATING DYNAMIC IMAGES WITH PERL
Accept a File for Upload
By allowing your users to upload files, you can expand the types of services that your Web site offers by writing a Perl CGI script that accepts the uploaded data, processes it, and produces some sort of result. To allow users to upload files, you must first create an HTML form that prompts the user for the file to upload, and then create a Perl CGI script that accepts the upload using the CGI library.
To accept files, your opening HTML form tag must specify a special encoding-type attribute called "multipart/form-data", after which, all data fields that are sent will be specially formatted for complex data payloads. This allows you to accept relatively large files, and to maintain ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.