title: How to install php-gmp on OSX 10.10
body: <p>So I am trying to use php-gmp methods on my mac, but I get the error "<code>Call to undefined function gmp_init()</code>".</p>
  
  <p>I've seen <a href="https://stackoverflow.com/questions/5576518/how-to-enable-php-gmp-on-mac-os-x-10-6-6-no-macports">this</a> answer that is basically the same question, but the question/answer are outdated - for example, the suggested brew package is not an available formula at this time.</p>