PHP ROUND vs Javascript ROUND

Question

I found a very strange issue, the issue is the ROUND method in PHP and Javascript the calculation results are not the same!?

See the following example:

PHP

Answer 1

A quick solution is to do the following:

echo round(-175.5, 0, PHP_ROUND_HALF_DOWN); // -175

There are other modes to choose from:

1. PHP_ROUND_HALF_UP - default
2. PHP_ROUND_HALF_EVEN
3. PHP_ROUND_HALF_ODD

See the documentation for more information.

This function will behave the same as in javascript:

function jsround($float, $precision = 0){
  if($float < 0){
     return round($float, $precision, PHP_ROUND_HALF_DOWN);
  }

  return round($float, $precision);
}