安装

要激活 GD 支持,配置 PHP 时加上 --with-gd[=DIR] ,DIR 是 GD 的基本安装目录。要使用推荐的绑定的 GD 库版本(首次绑定于 PHP 4.3.0),使用 --with-gd 。要编译 GD 库,需要libpnglibjpeg

在 Windows 中,需要将 GD2 的 DLL 文件 php_gd2.dll 作为一个扩展包含在 php.ini 中。GD1 的 DLL 文件 php_gd.dll 在 PHP 4.3.2 中被删除了。此外要注意首选的真彩色图像函数,例如 imagecreatetruecolor(),需要 GD2。

Note:

要在 Windows 下启用 exif,在 php.ini 中 php_mbstring.dll 必须在 php_exif.dll 之前加载。

要在 PHP 3 中禁止 GD 支持,在配置时加上 --without-gd

要增强 GD 的能力以处理更多的图像格式,在配置 PHP 时指定 --with-XXXX 的配置开关。

所支持的图像格式
图像格式 配置开关
jpeg-6b 要激活 jpeg-6b 的支持,加上 --with-jpeg-dir=DIR .
png 要激活 png 的支持,加上 --with-png-dir=DIR 。注意,libpng 需要 zlib library,因此配置中还要加上 --with-zlib-dir[=DIR]
xpm 要激活 xpm 的支持,加上 --with-xpm-dir=DIR 。如果配置时提示找不到所需要的库,可以加上到 X11 库的路径。

Note: 当把 PHP 和 libpng 一起编译时,必须使用和 GD 库连接的同一个版本。

要增强 GD 的能力以处理更多的字体,在配置 PHP 时指定 --with-XXXX 的配置开关。

所支持的字库
字库 配置开关
FreeType 1.x 要激活 FreeType 1.x 的支持,加上 --with-ttf[=DIR]
FreeType 2 要激活 FreeType 2 的支持,加上 --with-freetype-dir=DIR
T1lib 要激活 T1lib(Type 1 字体),加上 --with-t1lib[=DIR]
本地 TrueType 字符串函数 要激活本地 TrueType 字符串函数的支持,加上 --enable-gd-native-ttf

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User Contributed Notes 16 notes

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52
james dot a dot munsch at gmail dot com
4 years ago
sudo apt-get install php5-gd && sudo service apache2 restart

To install under Ubuntu 14.04.
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24
Anonymous
1 year ago
For all who use php 7 and ubuntu

sudo apt-get install php7.0-gd
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12
msc at homofaber dot com
9 years ago
It should be noted that it might be pretty easy to install gd without the need to recompile php, when using debian:

apt-get install php5-gd
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8
elassoto at hotmail dot com
8 years ago
If you have already compiled PHP and want to recompile '--with-gd', don't forget to run 'make clean' first!
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1
florian
7 years ago
People having difficulties setting the --with-libdir option needs to set it like this :

--with-libdir=lib64

That option works fine. Doing --with-libdir=/usr/lib64 doesn't work because the configure script prepends the --prefix option before the --with-libdir option. So, doing --with-libdir=/usr/lib64 makes the configure script to look for libs in /usr/usr/lib64, which is wrong of course, and not in /usr/lib64.
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1
Joseph Marlin
7 years ago
I also had to install the libgd package in addition to php5-gd:

sudo apt-get install libgd2-xpm-dev*
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0
Mike K
2 years ago
On Ubuntu I was missing the libpng-dev, libjpeg-dev (and in my case) libwebp-dev libraries, all gettable with apt-get.

Also once those libraries are installed, including --with-png-dir --with-jpeg-dir --with-webp-dir, without any values (i.e. =/dir) appeared to be valid ... though admittedly I didn't try without (in case the configure script autodetected them).
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0
leyluj21 at gmail dot com
3 years ago
If you are using PHPBREW , the extension is called gd.
So you do.
```
phpbrew ext install gd
```

It will compile the extension to the core.
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-2
remalsha at gmail dot com
7 months ago
On AntergosOS ( Arch linux )

*first run >>php -v   and get current php version. In my case for PHP 7.1.14

      sudo pacman -S php71-gd  

then restart you apache server using,
    
      sudo systemctl restart httpd
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0
boly38 at gmail dot com
7 years ago
To get GD bundled under Ubuntu, the way to recompile php5 with gd is described here (french) http://doc.ubuntu-fr.org/modules_php#php5-gd
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-1
alejo dot jm at gmail dot com
6 years ago
On Macox lion with mac port just use:
sudo port install php5-gd
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-1
octopus at logicaloctopus dot com
7 years ago
I was running PHP on a SUSE box on amazon EC2.
to get gd to work all I had to do was to run:
> yast -i php5_gd

and when that completed I just restarted apache. voila!
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-2
Qussayyon Qamaron: Qusai.zf2@gmailcom
1 year ago
#install under Ubuntu 16.04:
    * if you have access to PHP7.1:
        <sudo> apt install php7.1-gd && <sudo> systemctl restart apache2
    * if you have access to PHP7.0:
        <sudo> apt install php7.0-gd && <sudo> systemctl restart apache2

------------------------------------------------
Qussayyon Qamaron: Qusai.zf2gmailcom
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theonestep4 at gmail dot com
1 year ago
To install on CentOS:

yum install php-gd
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-6
victornewman at mail dot ru
1 year ago
apt-get isntall php7.0-gd install php7.0-gd on ubuntu but still not enabled so I try ./configure --with-gd=/usr/share/php7.0-gd but it gives -bash: no such a file or directory
I can see it with apt list --installed I can located with whereis php7.0-gd but compile doesn't work.
Problem last 6 hour, and continue
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