Warning: mysqli_num_rows() expects exactly 1 parameter, 2 given | mysql |mysqli [duplicate]

Answer 1

correct way of doing is

$sql="SELECT COUNT(*) FROM xxx limit 2";

if ($result=mysqli_query($con,$sql))
  {
  // Return the number of rows in result set
  $rowcount=mysqli_num_rows($result);
  printf("Result set has %d rows.\n",$rowcount);
  // Free result set
  mysqli_free_result($result);
  }

mysqli_close($con);