[RESOLVED] session problem?

subodh_dg

I have two files 'index.html' and 'login.php'
Index.html passes username and password value to login.php
Error getting as:

Warning: session_start() [function.session-start]: Cannot send session cookie - headers already sent by (output started at login.php:1) in ogin.php on line 2

Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at login.php:1) in login.php on line 2

File code:
index.html

<html>
<head>
<title>Login Panel</title>
</head>
<body>
<h1>Please enter details here</h1><br><br>
<form action="login.php" method="post">
<table border=0>
<tr>
<td>Username</td>
<td><input type=text name="user_name" maxlength=255 size=13><br></td>
</tr>
<tr>
<td>Password</td>
<td><input type=text name="user_pass" maxlength=255 size=13><br></td>
</tr>
<tr>
<td colspan=2><input type=submit value="submit"></td>
</tr>
</table>
</form>
<br><br><br><br><br><br> Created by <a href="http://subodh.info/">Subodh</a>
</body>
</html>

<?
   session_start();

require_once "../functions.php";
if (!$db)
{
echo "Error. Can't connect to database.Please try later";
exit;
}
mysql_select_db($db_name);
$result = dbquery("select * from user where username = '".$HTTP_POST_VARS["user_name"]."' and password ='".$HTTP_POST_VARS["user_pass"]."'");
$rows = dbrows($result);
$num_results = mysql_num_rows($result);

if($num_results) {
echo "Login success<br>";
	$_SESSION['user']=1;


}
else 
{
echo "Wrong username/password";
$_SESSION['user']=0;
echo"<br><br><a href='index.html'>Click here to Login again.</a>";
}

?>

What may be the problem?

bpat1434

Could be some white-space before the opening "<?" tag.

subodh_dg

No, there isn't any white space before <?

bpat1434 wrote:
Could be some white-space before the opening "<?" tag.

bpat1434

Well, either that isn't the full document, or there is white-space, and you just don't see it. THe reason you get the error is because something is sent back to the browser (be it a regular space character before the opening php tag, an extra "<", or a misleading [man]header/man call) before session_start() is called.

Make sure that if you include any files above session_start() that they don't send anything to the browser (no echo, no var_dump, no print* functions).

subodh_dg

I have solved the problem. It's due to the page is encoded in UTF-8. When I open it in notepad and then save as ANSI encoding. The problem solved.
Thanks for help.
I want to know is there any problem with UTF-8 encoding?

bpat1434

No, as long as the page is displayed as UTF-8. Otherwise, the BOM (Byte Order Mark) is shown first before all content.