php errors

mikejkellyuk · #1 (**permalink**) 01-16-2008, 11:47 AM

when i test my php login script it works but i get this warning
"Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at /home/mikejkel/public_html/login_success.php:2) in /home/mikejkel/public_html/login_success.php on line 3"

hears the code

PHP Code:

 
// Check if session is not registered , redirect back to main page.
// Put this code in first line of web page.
<?
session_start();
if(!session_is_registered(myusername)){
header("location:main_login.php");
}
?>

<html>
<body>
<p>Login Successful</p>
<p><a href="http/www.mikejkellyuk.com/index1.html">Go to main menu</a></p>
</body>
</html>

i think it is somthing to do with php session any help would be good

thanks
mike

MrPickle · #2 (**permalink**) 01-16-2008, 12:26 PM

I know nothing about PHP but maybe if you post your code we'll be able to help you more.

ccoonen · #3 (**permalink**) 01-16-2008, 08:46 PM

Whenever you see this error "headers already sent" it means that something was already sent to the browser. This has to be your absolutely first line "session_start();" to kick off the process of session-saving/retrieving... if you put anything before it, sessions wont work and this error will be thrown.

TeraTask · #4 (**permalink**) 01-16-2008, 09:21 PM

It's the comments at the top. Change your code to this:

PHP Code:

  <?
// Check if session is not registered , redirect back to main page.
// Put this code in first line of web page.
session_start();
if(!session_is_registered(myusername)){
header("location:main_login.php");
}
?>

<html>
<body>
<p>Login Successful</p>
<p><a href="http/www.mikejkellyuk.com/index1.html">Go to main menu</a></p>
</body>
</html>

Should have done that anyway as the comments are PHP comments, not HTML comments.

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The Following 2 Users Say Thank You to ccoonen For This Useful Post:
HelloWorld (01-17-2008), mikejkellyuk (01-18-2008)