PHP Installing GD
Just in case you missed installing the GD library when you were setting up PHP, I’ll
quickly go over it again. I will also show you a great little chunk of code that you can use
to load the library dynamically.
To install GD on a Linux or UNIX installation you will need to recompile PHP with
the --with-gd option. You can also compile the GD library as a shared object so you can
load the GD library dynamically whenever you need it. To do this you would use the
--with-gd=shared option. Then, to load in the library dynamically at run time, you would
use the following line of code:
dl(‘gd.so’);
To install GD on a Windows platform you need to copy the php_gd2.dll that came with
the installation package into the extensions directory specified in the php.ini file. Then
you will need to edit the php.ini file and uncomment the following line:
extension=php_gd2.dll
This will enable access to the GD library. If you would like to load the extension dynamically
with script you may do so with the following line of code:
dl(‘php_gd2.dll’);
In order to dynamically load an extension, the shared object file (UNIX) or the dll file (Windows)
must be in the extensions directory specified in the php.ini file
