PHP

mysqli exception handling

// we can go with die function, and some mysqli function like
// mysqli_num_rows

$con=mysqli_connect("localhost","root","","employeeDB") or die('Unable to connect');
$sql="select * from employee where id = 1";
$result=mysqli_query($con,$sql) or die(mysqli_error());
  if ($result){
  // this will return the number of rows in result set
  	$numRos=mysqli_num_rows($result);
    if($numRos > 0){
    	$data = mysqli_fetch_array($result);
    	print_r($data);
    }else{
    	print "No data found";
    }
  }