skip a row in foreach loop

["afan@xxxxxxxx" <afan@xxxxxxxx>]

I have a code

foreach($results as $key => $value)
{
   echo $key.': '. $value .'<br>';
}

But, $value could be zero too.
How to skip printing on screen when $vlaue == 0?

I know I can do
foreach($results as $key => $value)
{
   if(!empty($value))
   {
       echo $key.': '. $value .'<br>';
   }
}

but there is a tons of code lines inside the loop and was thingking is 
there any part in foreach function that can do that? something like:

foraech($results as $key => $value, skip(empty($value)))
{
   //
}

Tahnks.

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