How to fix division by zero?

Question

PHP

$data['products'][] = array(
......
'saving' => $result['price'] = round((($result['price'] - $result['spec'] )/$result['price'])*100, 0),
);
but if the variable result['price'] is equal to 0, an error is thrown about division by 0, how can I fix it&

Answer 1

Do not divide by zero.

Answer 2

$res = $result['price'] - $result['spec'];
if($res <= 0) { ... // что тогда делать

Answer 3

Do not divide by zero, obviously

if ($result['price']) != 0) {
  $data['products'][] = array(
  ......
    'saving' => $result['price'] = round((($result['price'] - $result['spec'])/$result['price'])*100, 0),
  );
}