Requirements
Requirements
Requirements
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
of gd-2.0.28.
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
PHP.
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. |
png | » http://www.libpng.org/pub/png/libpng.html | |
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:
Font library | Download | Notes |
---|---|---|
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 7.0.0). |