title: How install Intl, GMP and BCMath PHP extensions?
body: <p>Centos 6.8 Final</p>
  
  <p>Php 7.0.16</p>
  
  <p>Directadmin control panel</p>
  
  <p>yum install php-gmp</p>
  
  <p>yum install php-bcmath</p>
  
  <p>yum install php-intl</p>
  
  <p>result is: No package xxx available.</p>
  
  <p>Thank you.</p>