title: intl extension: installing php_intl in Moodle
body: <p>I have WAMPSERVER 3.0.6 64 bit. 
  I have updated PHP version 5.6.25 from 7.0.10.
  I have installed updated version of Moodle 3.4 and have tried to run but getting the issue is following -
  Intl extension is required to improve internationalization support, such as locale aware sorting and international domain names.</p>
  
  <p>For resolving this issue I have tried so many tips but could not resolve this issue.</p>