Senior design proj HELP- session_start() [function.session-start]: Cannot send ses..

himnbandit

I am trying to get sessions to work so i can pass a variable to the next page... i've tried even the simplest php code to get them to work:

<?php

session_start();

$hostname = "............
.
.
.
.

$connection = mysql_connect($hostname, $user, $password);

mysql_select_db($dbuse) or die("Could Not Connect to Database");

$SESSION['hid'] = 1;
$SESSION['account'] = 123457;

print("<TD>
<form method=\"post\" action=\"details2.php\">
<input type=\"hidden\" size=25 name=\"account\" value=$account>
<input type=\"hidden\" size=25 name=\"hid\" value=$hid>
<input type=\"submit\" name= \"submit100\" value=\"Details\">
</p>
</form>
</TD>\n");

and get this result on the page:

Warning: session_start() [function.session-start]: Cannot send session cookie - headers already sent by (output started at /usr/local/apache/htdocs/test.php:2) in /usr/local/apache/htdocs/test.php on line 4

Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at /usr/local/apache/htdocs/test.php:2) in /usr/local/apache/htdocs/test.php on line 4

and the same result when i hit the details button....

all i want to do is push the details button and have it send 2 variable to the next page - i can do this easily w/hidden form fields and have it go to a new large page, the problem is i need it to be a 400x800 page so i tried using this javascript i made:

window.open('details.php','Details','width=400,height=800');
return false;

and this as the start of the form:

but the small window that pops up doesnt get any of the variables in the form...

This is for a senior design project thats due in 2 days... PLEASE help!

Thanx

Adam

mrhappiness

Originally posted by himnbandit
Warning: session_start() [function.session-start]: Cannot send session cookie - headers already sent by (output started at /usr/local/apache/htdocs/test.php:2) in /usr/local/apache/htdocs/test.php on line 4

line 4 is the line containing your

session_start();

and line 2 is a line that is not inside <?php and ?> tags and therefore is considered as output which results in php not being able to send the session cookie

no output is allowed before calling session_start()
this includes whitespace and new lines

if that does not help append the file test.php as is (just append the extensions .txt)

himnbandit

Warning: session_start() [function.session-start]: Cannot send session cookie - headers already sent by (output started at /usr/local/apache/htdocs/account.php:10) in /usr/local/apache/htdocs/account.php on line 100

Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at /usr/local/apache/htdocs/account.php:10) in /usr/local/apache/htdocs/account.php on line 100

is the error i get on my actual php file - now that the test file worked

that line is:

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">

<html>

and my php starts:

<?php
session_start();

$hostname = "localhost";
.
.
.

any suggestions?

himnbandit

Even when i only have:

//-->
</script>

<?php
session_start(); //line 13

$SESSION['hid']=2;
$SESSION['account']=123457;

I still get:

Warning: session_start() [function.session-start]: Cannot send session cookie - headers already sent by (output started at /usr/local/apache/htdocs/test.php:1) in /usr/local/apache/htdocs/test.php on line 13

Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at /usr/local/apache/htdocs/test.php:1) in /usr/local/apache/htdocs/test.php on line 13

i really need some help here - this is due in 2 days - it seems SOOO easy but its just NOT working!

Adam

mrhappiness

Originally posted by mrhappiness
no output is allowed before calling session_start()
this includes whitespace and new lines

output is everything being sent to the browser

this includes new lines, whitespace, html, javascript, absolutely everything!

make

<?php
session_start();
?>

the very 1st 3 lines of your script

himnbandit

WOW - THANK YOU!

x01440

I ran into the same problem doing a web page for a small business. That error you (and I) received is pretty ridiculous because in earlier builds of version 4 PHP, you could put the session_start() command anywhere in the file and the PHP parser picked it up and started the session. I don't know why it was changed...