title: How to fix error missing php_mbstring.dll while install composer
body: <p>I am newbie of Laravel programming. I have got error while try to install Composer on CMD in Windows as bellow :</p>
  
  <p><img src="https://i.stack.imgur.com/ag9fo.png" alt="enter image description here"></p>
  
  <p>I have been searching on Google to find out way of fix this error but I can not still get solution. Please help me.</p>