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> Writing And Testing My Own Login Script [solved]
Eggie
post Feb 21 2008, 06:24 PM
Post #1


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Posts: 130
Joined: 19-January 08
From: Zagreb/Croatia
Member No.: 27,735
i have this error
QUOTE
Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at /home/eggie/public_html/race.php:2) in /home/eggie/public_html/race.php on line 5

in every page i have with session start...what's the problem??


CODE
<title>Race</title>
<?php
include("style.css");
include("config.php");
session_start();
if(!session_is_registered(myusername)){
echo 'Your Session has Expired!';
exit;}

//If you click race...
if ($_GET['action']=='race')
{
$asa=$_POST['bike'];

if(!isset($asa))
{
echo 'You didn\'t select any bike!';
?>
<br>click <a href=race.php> HERE</a> to go back
<?php
exit;
}

else{

$rand=mt_rand(1,2);
  
if ($_POST['bike']==1) $trub='Derbi Senda 50';
if ($_POST['bike']==2) $trub='Honda NS 50 R';
if ($_POST['bike']==3) $trub='Suzuki ZR 50';
if ($_POST['bike']==4) $trub='Yamaha DT 50 MX';
if ($_POST['bike']==5) $trub='Aprilia RS 50';

echo'You raced against:';
echo $trub;
$name=$_SESSION['views'];


$res = mysql_query("select * from members where username = '$name'");
$wins1 = mysql_fetch_array($res);
$points=$wins1['points'];
$wo=$wins1['wins'];
$lo=$wins1['lose'];

//If random number is equal to 1 than set win +1
if($rand==1){
?>
</br>
<?php
$wo++;
$points=$points+100;
mysql_query("update members set wins=$wo where username = '$name'");
mysql_query("update members set points=$points where username = '$name'");
echo '<br>You won 100 points!';
?>
</br>
<table border="1">
<?php
echo'You have total of: ' .$points. ' points!';
?>
</table>
</br>
<?php
}

//else lose +1
else {

echo'<br><br>You lost!';
?>
<table border="1"><td>
<?php

echo'You have total of: ' .$points. ' points!';


?>
</td></table>

<?php
$lo++;

mysql_query("update members set lose=$lo where username = '$name'");

?>
</br>
<?php
}

//How many times you won overall
echo 'Wins:';
echo $wo;
?>
</br>
<?php
echo'Losses:';
echo $lo;


//race form
?>
<form name="form3" method="post" action="race.php">

    <input type=submit value="Go back">  

</form>
<?php



exit;


}
}

if ($_GET['action']!='race'){?>
<html>
<head>
&lt;script type="text/javascript">
    function showpic(o) {
        o = parseInt(o);
        switch (o)
        {
        case 1:
            imgName='pictures/senda.jpg';break;
        case 2:
            imgName='pictures/ns.jpg';break;
        case 3:
            imgName='pictures/zr.jpg';break;
        case 4:
            imgName='pictures/dt.jpg';break;
        case 5:
            imgName='pictures/rs.jpg';break;
        }
        var DivImage = document.getElementById('DivImg');
        var DisplayImg = document.getElementById('IdImg');
        DisplayImg.src=imgName;
        DivImage.style.visibility="visible";
    }
</script>
</head>
<body>
<form name="form2" method="post" action="race.php?action=race">
<table border="1"><td>Who do you wanna race?<br>
<font size="1">Hint:You get 100 points for racing this class</font></td></table>
    <select size=5 name="bike" onchange="showpic(this.options[this.selectedIndex].value)">
    <option value="1">Derbi Senda 50</option>
    <option value="2">Honda NS 50 R</option>
    <option value="3">Suzuki ZR 50</option>
    <option value="4">Yamaha DT 50 R</option>
    <option value="5">Aprilia RS 50</option>
    </select><br>
    <input type=submit value=Race>  
    <div id="DivImg" style="position:relative;top:-90px;left:150px;z-index:20;width:25px;height:25px;visibility:hidden;text-align:center;"><img id="IdImg"></div>
</td>
</tr>
</form>

</body>
</html>

<?php
}
?>
<form method=post action='login_success.php'>
                         <input type=submit value='Go to main!'></form>
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Miles
post Feb 21 2008, 06:45 PM
Post #2


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Member No.: 27,129
I'm not sure, but judging from your code, this could be caused by not having the session_start() function at the top of the code. Put it to the top and post here with any more issues. Or, it could be that config.php has session_start() already in it and you're having it again, which causes warnings. If all else fails, it dosen't seem much more than a warning, so you could possibly have error_reporting(0); in it, which I believe stops warnings from coming up.
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Eggie
post Feb 21 2008, 07:07 PM
Post #3


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Group: Members
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Joined: 19-January 08
From: Zagreb/Croatia
Member No.: 27,735
i put it up and it's ok...
now i have another problem...
this is my logout script...
CODE
<?
session_start();
session_destroy();
?>

and this is another part in other script(login_success)...
CODE
if(!session_is_registered(myusername)){
header("location:main_login.php");
}

when i go to my logout script and after that i go to the "login_success.php" script it just prints out just as i didnt go to my logout script.. what could cause the problem?

EDIT:btw this is my "login_check.php" script

CODE
<?php
include("style.css");
include("config.php");
// username and password sent from signup form
$myusername=$_POST['myusername'];
$mypassword=$_POST['mypassword'];

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

// Mysql_num_row is counting table row
$count=mysql_num_rows($result);
// If result matched $myusername and $mypassword, table row must be 1 row

if($count==1){
// Register $myusername, $mypassword and redirect to file "login_success.php"
session_register("myusername");
session_register("mypassword");
header("location:login_success.php");
$_SESSION['views'] = $_POST['myusername'];
}
else {
echo "Wrong Username or Password";
}
?>


This post has been edited by Eggie: Feb 21 2008, 07:23 PM
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Feelay
post Feb 21 2008, 08:30 PM
Post #4


Kinda N00B
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Group: Members
Posts: 212
Joined: 13-January 08
From: Sweden
Member No.: 27,579
I think I know whats wrong.

You have registered a session in a way I've never used. But i checked the php manual, and according to that one, you must unregister registered sessions.

You can do that by typing something like this:
CODE
session_unregister("myusername");

You must include this code (and unregister mypassword), in the logout script. here is the link for the phpmanual:
session_unregister php manual
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Eggie
post Feb 21 2008, 08:37 PM
Post #5


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Member No.: 27,735
QUOTE(Feelay @ Feb 21 2008, 09:30 PM) *
I think I know whats wrong.

You have registered a session in a way I've never used. But i checked the php manual, and according to that one, you must unregister registered sessions.

You can do that by typing something like this:
CODE
session_unregister("myusername");

You must include this code (and unregister mypassword), in the logout script. here is the link for the phpmanual:
session_unregister php manual

how do you register sessions??can u put it here please??

EDIT:and unregister...please copy those codes here...

This post has been edited by Eggie: Feb 21 2008, 08:40 PM
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Feelay
post Feb 21 2008, 08:41 PM
Post #6


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Group: Members
Posts: 212
Joined: 13-January 08
From: Sweden
Member No.: 27,579
QUOTE
CODE
if($count==1){
// Register $myusername, $mypassword and redirect to file "login_success.php"
session_register("myusername");
session_register("mypassword");
header("location:login_success.php");
$_SESSION['views'] = $_POST['myusername'];
}
This is your code.. Look at this:

QUOTE
CODE
session_register("myusername");
session_register("mypassword");


This is were you have registered them. now in the logoutscript, you should unregister them.
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Eggie
post Feb 21 2008, 08:46 PM
Post #7


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Group: Members
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Joined: 19-January 08
From: Zagreb/Croatia
Member No.: 27,735
QUOTE(Feelay @ Feb 21 2008, 09:41 PM) *
This is your code.. Look at this:
This is were you have registered them. now in the logoutscript, you should unregister them.

this is my logout script
CODE
<?
session_start();

session_unregister("myusername");
?>
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Feelay
post Feb 21 2008, 08:51 PM
Post #8


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Group: Members
Posts: 212
Joined: 13-January 08
From: Sweden
Member No.: 27,579
You said this is your logout script:

QUOTE
CODE
<?
session_start();
session_destroy();
?>


And I said that you should try to change it to this wink.gif:

CODE
<?
session_start();
session_unregister("mypassword");
session_unregister("myusername");
session_unset();
session_destroy();
?>


But eggie. remember. as I told You.. I have NEVER ever used session_regiter and session_unregister, so I dont know if I am using session_unregister the right way..

Maybe it is:



CODE
<?
session_start();
session_unregister($mypassword);
session_unregister($myusername);
session_unset();
session_destroy();
?>

I don't know. try both.. but I know that the fault is from there.
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Eggie
post Feb 21 2008, 09:13 PM
Post #9


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Joined: 19-January 08
From: Zagreb/Croatia
Member No.: 27,735
QUOTE(Feelay @ Feb 21 2008, 09:51 PM) *
But eggie. remember. as I told You.. I have NEVER ever used session_regiter and session_unregister

thats why i asked u to copy that code where you register and unregister in ur scripts
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Feelay
post Feb 21 2008, 09:18 PM
Post #10


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Group: Members
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From: Sweden
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I don't understand.. tongue.gif
did the code I gave you work, or didn't you try?
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