Default php function that turns negative numbers in 0

Question

Is there such a thing?

for eg

$var = -5;
echo thefunction($var); // should be 0


$var = 5;
echo thefunction($var); // should be 5

Answer 1

function thefunction($number){
  if ($number < 0)
    return 0;
  return $number; 
}

that should do the trick