linux 添加php gd扩展 （linux添加PHP扩展）

安装gd库依赖

yum -y install libjpeg libjpeg-devel libpng libpng-devel freetype freetype-devel

进入到 cd /usr/local/php-7.1.16/ext/gd 

/usr/local/php/bin/phpize

./configure –with-php-config=/usr/local/php/bin/php-config –with-jpeg-dir –with-freetype-dir
make && make install

php.ini 中加入

extension=gd.so

重启php-pfm