CentOS: Enabling GD Support in PHP Installation
The thing that did the trick for me eventually was:
yum install gd gd-devel php-gd
and then restart apache:
service httpd restart
- You need to find a repo that offers a GD lib matching your current php version. I've had great success using Remi Collet's repo for this purpose. In fact, I used it yesterday to update my php install to the latest 5.4.0RC6 version on my CentOS6 box.
- Once you've setup the repo it's a simple matter of running
sudo yum install php-gd - Of course, the usual things apply: make sure you restart apache after installing, etc.
With CentOS 6.5+ and PHP 5.5:
yum install php55u-gd
service httpd restart
If you get an error like: cannot map zero-fill pages: Cannot allocate memory in Unknown on line 0, it could be because you don't have a swap file. I suggest you take a look at the tutorial mentioned in this answer: https://stackoverflow.com/a/20275282/828366
Tutorial: https://www.digitalocean.com/community/articles/how-to-add-swap-on-centos-6