php "session_start();" problem?

A

ApurvA

New member
JAI MATADI all ..

i have SIGNUP.PHP form and LOGIN.PHP form...

if the user already signed in then he will automatically go to PROFILE.PHP page ..

to do this i m doing this .. in my LOGIN.PHP

------------------------------------------------
<?php

//start the session
session_start();

//check to make sure the session variable is registered
if(session_is_registered('username')){

//the session variable is registered, the user is allowed to see anything that follows
header( "Location: profile.php" );
echo 'Welcome, you are still logged in.';

}
else{

//the session variable isn't registered, send them back to the login page
header( "Location: login.php" );
}

?>
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but m getting this error(s) while m running my LOGIN.PHP

--------------------------------------
Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at C:\wamp\www\login and etc database\login.php:9) in C:\wamp\www\login and etc database\login.php on line 12



Deprecated: Function session_is_registered() is deprecated in C:\wamp\www\login and etc database\login.php on line 15

Warning: Cannot modify header information - headers already sent by (output started at C:\wamp\www\login and etc database\login.php:9) in C:\wamp\www\login and etc database\login.php on line 26

------------------------------------

tell me .. where i m going wrong ..

thank you ..
 
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