error message on session_register

[anfetienne]

hi ive been using a login code which uses sql & db its quite simple and has been working great.....but as i have just gone to do a final test on the site i've built starting from the login page i get the following error message...

"Warning: session_register() [function.session-register]: Cannot send session cache limiter - headers already sent (output started at /home/theau10/public_html/resources/checklogin.php:1) in /home/theau10/public_html/resources/checklogin.php on line 30

Warning: Cannot modify header information - headers already sent by (output started at /home/theau10/public_html/resources/checklogin.php:1) in /home/theau10/public_html/resources/checklogin.php on line 32"

I don't know why it is doing this as it has been working great before.

here is the login code

<title>: : : members online resource centre</title><?php
$username="theau10_tawUser";
$password="auction10";
$database="theau10_resources";
 
// Connect to server and select databse.
$connection=mysql_connect("localhost" ,"$username", "$password") or die("Unable to connect!");
 
mysql_select_db("$database") or die("Unable to select database!");
 
// username and password sent from form
$myusername=$_POST['myusername'];
$mypassword=$_POST['mypassword'];
 
// To protect MySQL injection (more detail about MySQL injection)
$myusername = stripslashes($myusername);
$mypassword = stripslashes($mypassword);
$myusername = mysql_real_escape_string($myusername);
$mypassword = mysql_real_escape_string($mypassword);
 
$sql="SELECT * FROM users WHERE username='$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:tsandcs.php");
}
else {
header("location:incorrect.php");
}
?>
 

[anfetienne]

ive tried again and this message came up

Warning: Unknown(): Your script possibly relies on a session side-effect which existed until PHP 4.2.3. Please be advised that the session extension does not consider global variables as a source of data, unless register_globals is enabled. You can disable this functionality and this warning by setting session.bug_compat_42 or session.bug_compat_warn to off, respectively. in Unknown on line 0

[anfetienne]

ok ive read up session_register is deprecated and that the use of $_SESSION is prefered.

ive changed my code to the following but i still get a error message of "Warning: Cannot modify header information - headers already sent by (output started at /home/theau10/public_html/resources/checklogin.php:1) in /home/theau10/public_html/resources/checklogin.php on line 32"

session_register("myusername");
session_register("mypassword");

my new code is

<title>: : : members online resource centre</title><?php
$username="theau10_tawUser";
$password="auction10";
$database="theau10_resources";
 
// Connect to server and select databse.
$connection=mysql_connect("localhost" ,"$username", "$password") or die("Unable to connect!");
 
mysql_select_db("$database") or die("Unable to select database!");
 
// username and password sent from form
$myusername=$_POST['myusername'];
$mypassword=$_POST['mypassword'];
 
// To protect MySQL injection (more detail about MySQL injection)
$myusername = stripslashes($myusername);
$mypassword = stripslashes($mypassword);
$myusername = mysql_real_escape_string($myusername);
$mypassword = mysql_real_escape_string($mypassword);
 
$sql="SELECT * FROM users WHERE username='$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"
$_SESSION["myusername"] = "$myusername";
$_SESSION["mypassword"] = "$mypassword";
header("location:tsandcs.php");
}
else {
header("location:incorrect.php");
}
?>
 

[hoopy]

Its due to this:

<title>: : : members online resource centre</title>

You cannot send any output to the browser before you use a header() call.

Just remove it and it should work fine.

[anfetienne]

ok ill try that.....thank you...

since session_is_registered has deprecated as well i will have to work on a different way to check if a session is registered.....has anyone got any suggestions to point me in the right direction?

[Dormilich]

@anfetienne
the manual entry for sessions at php.net

[anfetienne]

ok i still keep getting a header error, i have removed the title as said and i get "Warning: Cannot modify header information - headers already sent by (output started at /home/theau10/public_html/resources/checklogin.php:2) in /home/theau10/public_html/resources/checklogin.php on line 33" for the following code

<?php
$username="theau10_tawUser";
$password="auction10";
$database="theau10_resources";
 
// Connect to server and select databse.
$connection=mysql_connect("localhost" ,"$username", "$password") or die("Unable to connect!");
 
mysql_select_db("$database") or die("Unable to select database!");
 
// username and password sent from form
$myusername=$_POST['myusername'];
$mypassword=$_POST['mypassword'];
 
// To protect MySQL injection (more detail about MySQL injection)
$myusername = stripslashes($myusername);
$mypassword = stripslashes($mypassword);
$myusername = mysql_real_escape_string($myusername);
$mypassword = mysql_real_escape_string($mypassword);
 
$sql="SELECT * FROM users WHERE username='$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_start();
$_SESSION['myusername'] = $myusername;
$_SESSION['mypassword'] = $mypassword;
header("location: tsandcs.php");
}
else {
header("location: incorrect.php");
}
?>