title: How to get weeks starting on sunday?
body: <p>I need to get week number in php where week should be calculated from sunday. By default its from monday. Please help me to find a way how to get week number considering sunday as starting day. </p>
  
  <p>In php manual 
      ISO-8601 week number of year, weeks starting on Monday (added in PHP 4.1.0)</p>
  
  <p>But I need to get week number of year, weeks starting on sunday. </p>
  
  <p>thanks</p>