Ubuntu中如何安装PHP GD

Question

I want to convert the image in low resolution with GD. I'm working on IBM Server under these speces Version: PHP 7.0.15-0ubuntu0.16.04.4 (cli) ( NTS )
and I have also comment out the extension from php.ini but can't enabled the GD on php server. I Just received this error.

Run Command: sudo apt-get install libgd

Reading package lists... Done

Building dependency tree Reading state information... Done E: Unable to locate package libgd

Second Command When I run give this message:

1) packages have unmet dependencies

and after running this command received this:

Command: sudo apt-get install libgd-dev

Reading package lists... Done

Building dependency tree

Reading state information... Done

You might want to run 'apt-get -f install' to correct these:

The following packages have unmet dependencies: libgd-dev: Depends: libgd3 (= 2.1.1-4ubuntu0.16.04.6) but it is not going to be installed

         Depends: libpng-dev

         Depends: libz-dev

         Depends: libjpeg-dev

         Depends: libfreetype6-dev but it is not going to be installed

         Depends: libxpm-dev but it is not going to be installed

         Depends: libx11-dev but it is not going to be installed

         Depends: libxt-dev but it is not going to be installed

         Depends: libfontconfig-dev

         Depends: libvpx-dev but it is not going to be installed

         Depends: libtiff-dev

linux-image-virtual: Depends: linux-image-4.4.0-81-generic but it is not going to be installed

E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution).

Cause of this Problem:

PHP Fatal error: Uncaught Error: Call to undefined function imagecreatefromstring()

Note please anyone tell me the step-by-step command to enable this GD Library on my this Linus machine. thanks alot

Answer 1

keep it simple...

apt-get install php-gd

will usually find the correct package and version for your install setup and just install everything nice for you.. did for me

Answer 2

sudo apt-get update

For 5.6 PHP

sudo apt-get install php5.6-gd

For 7.0 PHP

sudo apt-get install php7.0-gd

Answer 3

I had an issue where it still wasn't working, even after installing (on ubuntu 20.04):

sudo apt-get install php-gd

What finally worked was when I remembered to restart my server, which in my case was:

sudo service apache2 restart

Hopefully this will help someone else.

Answer 4

I had similar issue but running sudo apt-get install php8.1-gd didn't solve the issue. I had to run sudo apt-get install php8.1-gd/bullseye .

If you running Debian 11,

sudo apt-get install php8.1-gd/bullseye

If you running Debian 10,

sudo apt-get install php8.1-gd/buster

If you are using other debian releases, just replace bullseye with your debian release name.

You can also search for the extension in the terminal. And install from the result.

sudo apt search php8.1-gd