php help_connecting sql database
Posted: Wed Jun 25, 2008 8:40 am
Hi,
I 'am trying to connect my sql database with my webpage for users log in. i have got this script so far but i keep getting the following error message which i cannot figure out..
could any1 help..
error:Warning: mysql_num_rows(): supplied argument is not a valid MySQL result resource in C:\xampp\htdocs\checklogin.php on line 18
Wrong Username or Password
code:
<?
$hostname_mysql_connect = "localhost";
$database_mysql_connect = "website_members";
$username_mysql_connect = "root";
$password_mysql_connect = "******";
$tblname_mysql_connect ="members";
$mysql_connect = mysql_pconnect($hostname_mysql_connect, $username_mysql_connect, $password_mysql_connect, $tblname_mysql_connect) or trigger_error(mysql_error(),E_USER_ERROR);
mysql_select_db($database_mysql_connect) or die(mysql_error());
$myusername = $_POST['myusername'];
$mypassword = $_POST['mypassword'];
$sql = "SELECT * FROM $tblname_mysql_connect WHERE username= '$myusername' and password='$mypassword'";
$result = mysql_query($sql);
$count = mysql_num_rows($result); (line 18)
if($count==1) {
session_register("myusername");
session_register("mypassword");
header("location:login_success.php");
}
else {
echo "Wrong Username or Password";
}
?>
many thanx
I 'am trying to connect my sql database with my webpage for users log in. i have got this script so far but i keep getting the following error message which i cannot figure out..
could any1 help..
error:Warning: mysql_num_rows(): supplied argument is not a valid MySQL result resource in C:\xampp\htdocs\checklogin.php on line 18
Wrong Username or Password
code:
<?
$hostname_mysql_connect = "localhost";
$database_mysql_connect = "website_members";
$username_mysql_connect = "root";
$password_mysql_connect = "******";
$tblname_mysql_connect ="members";
$mysql_connect = mysql_pconnect($hostname_mysql_connect, $username_mysql_connect, $password_mysql_connect, $tblname_mysql_connect) or trigger_error(mysql_error(),E_USER_ERROR);
mysql_select_db($database_mysql_connect) or die(mysql_error());
$myusername = $_POST['myusername'];
$mypassword = $_POST['mypassword'];
$sql = "SELECT * FROM $tblname_mysql_connect WHERE username= '$myusername' and password='$mypassword'";
$result = mysql_query($sql);
$count = mysql_num_rows($result); (line 18)
if($count==1) {
session_register("myusername");
session_register("mypassword");
header("location:login_success.php");
}
else {
echo "Wrong Username or Password";
}
?>
many thanx