php 如何确定我是否安装了 gd 库或 imagemagick？
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How to find out if I have gd library or imagemagick installed?
提问by eddard.stark
This might seem a really stupid question. I am new php image processing. I assume there are only two imageprocessing libraries in php. They are called GD/GD2 and Imagemagick. How do I know which I have installed? or if I have installed any? I have echo-ed phpinfo. It just says that GD imaging was created by Rasmus Lerdorf, Stig Bakken, Jim Winstead, Jouni Ahto, Ilia Alshanetsky, Pierre-Alain Joye, Marcus Boerger. I am really confused. Thanks in advance.
这似乎是一个非常愚蠢的问题。我是新的 php 图像处理。我假设 php 中只有两个图像处理库。它们被称为 GD/GD2 和 Imagemagick。我怎么知道我安装了哪个？或者如果我安装了任何？我已经回显了 phpinfo。它只是说 GD 成像是由 Rasmus Lerdorf、Stig Bakken、Jim Winstead、Jouni Ahto、Ilia Alshanetsky、Pierre-Alain Joye、Marcus Boerger 创建的。我真的很困惑。提前致谢。
回答by Michael Berry
If you can get to the console of the server running PHP, type:
如果您可以访问运行 PHP 的服务器的控制台，请键入：
php -i | grep 'GD\|ImageMagick'
This will tell you if GD or ImageMagick is installed and running.
这将告诉您 GD 或 ImageMagick 是否已安装并正在运行。
回答by Yevgeniy Afanasyev
This is also a good answer that helped me. Thank you @Class
这也是一个很好的答案，对我有帮助。谢谢@Class
if(extension_loaded('gd')){/*loaded*/}
回答by Niyas Niya
Just type in:
只需输入：
yum info gd
百胜信息gd
which shows all the details about about gd library installed..
它显示了有关安装的 gd 库的所有详细信息..
