Enable GD library support for CentOS in PHP

No GD Library, AKCMS will lose features --------------------------- GD Library affects AKCMS function list-image watermark-Thumbnail-verification code --------------------------- cause analysis these functions involving Image processing need the GD Library ### * File: include/image. func. php *-* Function: add does not have the GD library, and AKCMS will lose the Function.
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List of AKCMS functions affected by GD Library
-Image watermark
-Thumbnail
-Verification code
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Cause analysis

These image processing functions require the GD Library.

### * File: include/image. func. php *
-* Function: addwatermark ($ source, $ sourcesize = array ())*
-* Function: imagecreatefromfile ($ sourcefile, $ sourceinfo = array ())*


Enable GD library support for PHP in CentOS

CentOS system, which is installed with yum, as follows:
Yum install php-gd


After apache is restarted, gd is supported.



This problem occurs sometimes when DEDECMS is installed.

After the gd Library is installed, the problem is solved.