php login page

[heaps21]

Hi there, I am trying to build a login page (username, password verification) and have searched online scripts. They all seem quite complicated in that they use functions for setting up sessions, and this sort of syntax: $db->...

Also I see the PEAR thing mentioned a lot. I naively thought it would just ba a case of checking the username and password entered against that stored in the db table. Are there any simple (understandable for a beginner) ways of doing it?

Cheers.

[Polish_Man]

Oh session variables are great!!

here:
how sessions work:
put this at the top of your page

session_start();

then to define a session variable $_SESSION['myvar'];

this will maintain state in an otherwise stateless script.

this code won't work correctly(what it is are just calls to functions
which connect to the db and select the db

SelectDB();
$db = 'PartsService';
connecttodb($db)

Then you must do a querry string to get you users names and passwords..... I would also recomend you doing some type of encryption or at least a hash allgorithm ie md5() ........

Then in a loop check with the $_POST['Upass']; against your data base........ or you could even

do this $querry="select Uname where pass =".$_POST['pass']."

if querry is null user is not a valid user......... hmmmm

an example of what I'm talking about:

if (isset($HTTP_POST_VARS['userid']) && isset ($HTTP_POST_VARS['password']))
{

$userid = $HTTP_POST_VARS['userid'];
$password = $HTTP_POST_VARS['password'];

$db_conn = MYSQL_CONNECT("localhost","","");
mysql_select_db(' ', $db_conn);
$query = '';
$result = mysql_query($query, $db_conn);
if (mysql_num_rows($result) >0)
{
$_SESSION['valid_user'] = $userid;
}
}

///now if the user is a user check if !empty($_SESSION
//['valid_user'])

There's some stuff missing for sicurity reasons... but fill in the db conn line.... mysql_querry line..... and query lin......... also if if(issit is just checking to see if the user actually entered data into the text boxes userid and password........

Hope this helps a little let me know