>rpm -ivh wkhtmltox-0.12.5-1.centos7.x86_64.rpm
error: Failed dependencies:

     xorg-x11-fonts-75dpi is needed by wkhtmltox-1:0.12.2-1.x86_64

# 提示需要安装75dpi  

> yum search 75dpi
> > yum install xorg-x11-fonts-75dpi.noarch

安装完成后，再执行：

> rpm -ivh wkhtmltox-0.12.2_linux-centos6-amd64.rpm

> unzip php-wkhtmltox-master.zip 
> cd php-wkhtmltox-master/
> phpize
> ./configure --with-php-config=/usr/bin/php-config
> make && make install
> php -m

# 检查扩展是否成功  如果能看到phpwkhtmltox  说明扩展成功 

php-wkhtmltox扩展安装完成

> vi /usr/local/php/etc/php.ini

加入：

extension="phpwkhtmltox.so"

>systemctl restart php-fpm