​x
 
<!DOCTYPE html>
<html>
<body>
​
<?php
function divide($dividend, $divisor) {
  if($divisor == 0) {
    throw new Exception("除以零");
  }
  return $dividend / $divisor;
}
​
try {
  echo divide(5, 0);
} catch(Exception $e) {
  echo "无法进行除法运算。";
}
?>
​
</body>
</html>