Here is my snippet for which am trying to understnad output of var_dump().
echo "<br> <br> Part2: ";
$query1="select * from student";
$result=mysqli_query($con,$query1) or die(mysqli_error($con));
var_dump($result);
if ($result)
{
$num1=mysqli_num_rows($result);
var_dump($num1);
echo $num1." rows affected.";
}
OUTPUT:
<---- Any explanation for this output?
Why are all the identifiers set to null ?
It gets it's values after a fetch or seek.
Wasn't num_rows supposed to contain number of rows affected ?
Not necessarily. If it did, there would be no need for the mysqli_num_rows function.
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