登录mysql_num_rows错误

Question

This is my Check Login file... Its shows an error: Call to undefined function mysql_num_row() Whats the problem?

$sql="SELECT * FROM $tbl_name WHERE username='$myusername' and password='$mypassword'";
$result=mysql_query($sql);

$count=mysql_num_rows($result);

if($count==1) {
    session_register("myusername");
    session_register("mypassword");
    header("location:login_success.php");
}

Answer 1

The error:

 Call to undefined function mysql_num_row()

Means that you are using mysql_num_row() when you should be using mysql_num_rows(). Note the s at the end.