How to install some additional php7 modules on CentOS 6.9

Hey everyone.

I need to install some additional php7 modules on CentOS 6.9 , but I do not know how.

The php -v command comes with PHP 5.3.3,

If I do phpinfo () on the web, I know PHP 7.0.27,

I need to install php7.0-intl php7.0-mcrypt php7.0-bcmath php7.0-curl according to the needs of any program,

I do not know how to do that.

I would like to know if it is better to cleanly install CentOS7 and reinstall Virtualmin.

If the above problem is solved, I will do it.

I would appreciate your help.

yum install php7.0-intl php7.0-mcrypt php7.0-bcmath php7.0-curl

Loaded plugins: fastestmirror, refresh-packagekit

Setting up Install Process

Loading mirror speeds from cached hostfile

No package php7.0-intl available.

No package php7.0-mcrypt available.

No package php7.0-bcmath available.

No package php7.0-curl available.

Error: Nothing to do