title: How to convert uuid v4 of php into two 64 bit integers
body: <p>Example: 
  Uuid generated from v4 of php : 
  <code>8bc278cb-2fb6-413b-add6-8ba39bf830e8</code></p>
  
  <p>I want to convert this into two 64 bit integers. </p>
  
  <p>I've tried using <code>hexdec</code> of php but it's return value is of numbers. I want datatype integer.</p>
  
  <p>Interestingly : </p>
  
  <p>I have tried using hexdec with the above uuid and used this output to dechex. Some how, not getting the same value?</p>
  
  <p>Any insights into this will be appreciated.</p>