Re: Is the GD module standard?

The GD module is an option that most sys admins install with php (It also installs by default on OS such as Centos, Ubuntu, etc...) -- itoctopus - http://www.itoctopus.com "Dave M G" <martin@autotelic.com> wrote in message news:46638B56.2080204@autotelic.com... > PHP General, > > I have been using the imagepng() function in my local testing environment > for a while now to make CAPTCHA images. > > In my testing environment, I hadn't done any customization to my PHP set > up. I went with the default set of installation options that Ubuntu offers > for a LAMP server. > > Recently, I uploaded my site to a web hosting server, and the CAPTCHA > would not display. > > At first, I didn't understand that it was a module issue, because I > thought the imagepng() function was standard in PHP. > > However, by using the phpinfo() command on my hosting service, I realized > they don't have the GD module installed. > > So my assumption that imagepng() will be available on any standard > installation of PHP is wrong. > > However, I'm surprised that it wouldn't be as common as, say, the MySQL > module. > > Is it that my Ubuntu installation comes with an unusual amount of bells > and whistles? Is it that my web hosting server is lacking in what can be > expected for standard PHP features? > > I want to write code that most people can expect to run on their hosting > services without having to reconfigure their PHP installation. So, can I > expect that most servers would have the GD module? If not, what do people > usually do to manipulate images? > > Thank you for any advice. > > -- > Dave M G > Ubuntu Feisty 7.04 > Kernel 2.6.20-15-386