<script>
function addCommas(nStr)
{
   nStr += '';
   x = nStr.split('.');
   x1 = x[0];
   x2 = x.length > 1 ? '.' + x[1] : '';
   var rgx = /(\d+)(\d{3})/;
   while (rgx.test(x1)) {
      x1 = x1.replace(rgx, '$1' + ',' + '$2');
   }
   return x1 + x2;
}

console.log(addCommas(1000000000));
</script>
<?php
echo md5('123456a'), "<br />";
echo md5('0988568786violet');
phpinfo();
