Round to nearest 0 or 5

[johnsmith153]

I need to take a time and convert so it is rounded up or down to the nearest 0 or 5.

 

function roundMe ($time, $upDown) {

  if($upDown==1) {
     //round up
  } else {
     //round down
  }

  return $x;

}

echo roundMe("16:22", 1); // returns 16:25
echo roundMe("16:22", 0); // returns 16:20
echo roundMe("16:25", 1); // returns 16:25
echo roundMe("16:59", 1); // returns 17:00
echo roundMe("16:59", 0); // returns 16:55

[DavidAM]

If $time is always a string with a colon in it:

 

function roundMe ($time, $upDown) {
  list($hrs, $mins) = explode(':', $time);

  // Is it already on a 5-minute boundary?
  if (($mins % 5) == 0) return $time;

  if($upDown==1) {
     //round up
    $mins += 5 - ($mins % 5);
  } else {
     //round down
    $mins -= ($mins % 5);
  }

  if ($mins < 10) $mins = '0' . $mins;

  return $hrs . ':' . $mins;

}

[johnsmith153]

Brilliant, thanks, but my 5 tests (sown in my first post) would return:

 

16:25

16:20

16:25

16:60

16:55

 

I'm looking at a fix myself. Thanks for dong most of it though.

[johnsmith153]

if($mins==60) {

$hrs++;

$mins = "00";

}

[johnsmith153]

if($hrs==24) {

$hrs = "00";

}

[DavidAM]

Oops! Sorry, I forgot about the hours thing.  Looks like you fingured it out though.

 

By the way, click the "Solved" button at the bottom of the post so others can see that there is a solution to the question.  It's almost at the bottom of the page.