If you have the GD library (available at » http://www.libgd.org/) you will
also be able to create and manipulate images.
The format of images you are able to manipulate
depend on the version of GD you install, and any other libraries
GD might need to access
those image formats. GIF support is available as
Note: libgd-2.0.4 or higher is required. As of PHP 5.5
libgd-2.1.0 or higher is required. Alternatively, use the bundled
GD library that ships with
You may wish to enhance GD to handle more image formats.
|Image format||Library to download||Notes|
|gif||Only supported in GD
versions newer than gd-2.0.28. Write
support is available as of PHP 5.0.1.
|jpeg||» http://www.ijg.org/||When building the jpeg library (prior to building PHP) you must
use the –enable-shared
option in the configure step. If you do not, you will receive an
error saying libjpeg.(a|so) not found when you get to the
configure step of building PHP.
|xpm||» ftp://metalab.unc.edu/pub/Linux/libs/X/!INDEX.html||It’s likely you have this library already available, if your
system has an installed X-Environment.
You may wish to enhance GD to deal with different fonts. The
following font libraries are supported:
|FreeType 1.x||» http://www.freetype.org/||Support for FreeType 1.x has been removed as of PHP 5.3.0.|
|FreeType 2||» http://www.freetype.org/|
|T1lib||» ftp://sunsite.unc.edu/pub/Linux/libs/graphics/)||Support for Postscript Type 1 fonts (Removed as of PHP