how to setup the session data

junemo · April 8th, 2004, 10:54 PM

hi,please help me solve this problem.

error message:
Warning: session_start(): open(/tmp\sess_7b62efce76a65e4d203439b5c06670b5, O_RDWR) failed: No such file or directory (2) in C:\Program Files\Apache Group\Apache2\htdocs\pro\POT\login\loginadmin.php on line 3

Warning: session_start(): Cannot send session cookie - headers already sent by (output started at C:\Program Files\Apache Group\Apache2\htdocs\pro\POT\login\loginadmin.php: 3) in C:\Program Files\Apache Group\Apache2\htdocs\pro\POT\login\loginadmin.php on line 3

Warning: session_start(): Cannot send session cache limiter - headers already sent (output started at C:\Program Files\Apache Group\Apache2\htdocs\pro\POT\login\loginadmin.php: 3) in C:\Program Files\Apache Group\Apache2\htdocs\pro\POT\login\loginadmin.php on line 3

Warning: main(common_db_only.php): failed to open stream: No such file or directory in C:\Program Files\Apache Group\Apache2\htdocs\pro\POT\login\loginadmin.php on line 5

what is wrong?
attach code:

<?php
session_unset();
session_start();

include("common_db_only.php");

if ($page==1)
{

$q1 = "Select * from pentadbir where adm_id='$txtpassword' AND adm_namapguna='$txtlog' and adm_statususer='A' ";
$r1=pg_send($q1);
$count1 = pg_numrows($r1);

if($count1==1)
{

    $values=pg_fetch_array($r1,0,PGSQL_ASSOC);
    $gaji = $values['adm_nogaji']."";
    session_register('gaji');
    //echo "Hi";
    echo "<script language='Javascript'>location='/POT/permohonan/borang_kemaskini_cari.php'</script>";
    exit;
}
    else
{
     echo "<script language='Javascript'>location='/POT/login/loginadmin.php?status=1'</script>";
    // exit;

}

} // page=1

?>

<html>
<head>
<title>E-Procurement</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<script language="JavaScript">

function Pengesahan(frm_login)
{
var ErrorMsg = ""
var ErrFlag = "False"

if (frm_login.txtlog.value == "")
{
ErrFlag = "True"
ErrorMsg +="* Please enter username. \n"
}

if (frm_login.txtpassword.value == "")
{
ErrFlag = "True"
ErrorMsg +="* Please enter password. \n"
}

if (ErrFlag == "True")
{
alert(ErrorMsg)
return false
}
else
return true

}
</script>

</head>

<body bgcolor="#FFFFFF" text="#000000">
<table width="750" border="0" bgcolor="#000099" align="center" cellpadding="0" cellspacing="0" background="/POT/images/design05.jpg" height="89">
<tr>
    <td rowspan="2" width="76" valign="top" height="70">
    </td>
</tr>

</table>

<table width="750" border="2" height="256" align="center" bordercolor="#000066">
<tr>
    <td height="14" bgcolor="#000099" bordercolor="#000099">
     <table width="100%" border="0" bordercolor="#FFFFFF" cellspacing="0" cellpadding="0">
        <tr width="750" height="5">

         <td >
            <div align="center"><?
            $tarikh = gmdate('d F Y');

            echo "Today : $tarikh Now : " ;
             ?><script type="text/javascript">
            var d = new Date()
            document.write(d.getHours())
            document.write(":")
            document.write(d.getMinutes())
            document.write(":")
            document.write(d.getSeconds())
            </script></div>
         </td>
        </tr>
     </table>
    </td>
</tr>
<tr>
    <td bgcolor="#FFFFFF" bordercolor="#FFFFFF" height="252">
     <form name="frm_login" method="post" action="loginadmin.php?page=1" onsubmit="return Pengesahan(document.frm_login)" >
        <table width="75%" border="0" align="center" height="154">
         <tr>
            <td colspan="3" height="2">
             <p align="center"><b>ADMINISTRATOR</b>
             </p>
             <?
                if($status==1)
                {
                echo"<b><center> Invalid username and password. <br>Please reenter.";
                echo"</center></b>";
             }
             else
             {
             echo"<b><center>Please enter username and password: </center></b> ";
             }?>
            </td>
         </tr>
         <tr>
            <td width="34%" height="20"> </td>
            <td width="2%" height="20"> </td>
            <td width="64%" height="20">
             </td>
         </tr>
         <tr>
            <td width="34%" height="17">Username</td>
            <td width="2%" height="17">:</td>
            <td width="64%" height="17">
             <input type="text" name="txtlog" maxlength="20" size="30">
             </td>
         </tr>
         <tr>
            <td width="34%" height="19">Password</td>
            <td width="2%" height="19">:</td>
            <td width="64%" height="19">
             <input type="password" name="txtpassword" maxlength="20" size="30">
             </td>
         </tr>
         <tr>
            <td colspan="3" height="14" align="right">
             <div align="center"> <b>
                <input type="submit" name="Hantar" value="Submit">
                <input type="reset" name="Batal" value="Cancel">
                </b></div>
            </td>
         </tr>
        </table>
     </form>

     <div align="center">
        <p>Copyright
         © 2001-2002 PTM, UM. All rights reserved. </p>
        </div>
    </td>
</tr>
</table>
</body>
</html>

Warning: Unknown(): Failed to write session data (files). Please verify that the current setting of session.save_path is correct (/tmp) in Unknown on line 0

how to setup the session.save_path?
Thank you.

richard.york · April 9th, 2004, 12:21 AM

Hi, you need to verify that the session data directory exists and that it has the proper write permissions.

Open php.ini, this file is located at C:\Windows\php.ini, or where ever Windows is installed.
Locate the following snippet:

Code:

; Argument passed to save_handler.  In the case of files, this is the path
; where data files are stored. Note: Windows users have to change this 
; variable in order to use PHP's session functions.
session.save_path = /tmp

Change the value to reflect a valid file path,
I'd suggest: C:\PHP\sessiondata

Save the changes.

Create the sessiondata directory.

Next apply the proper write permissions to the sessiondata directory, if you're using Windows XP, then read this FAQ:
http://p2p.wrox.com/topic.asp?TOPIC_ID=11962

Verify that there is no whitespace or output before the opening <?php delimiter appearing before the call to session_start().

Restart Apache, run your script again.

This should cure all of your session-related errors.

I'd also remove the call to session_unset().. session_unset() destroys all session variables currently set, and actually wouldn't do anything anyway since its called prior to session_start().

Then..
Warning: main(common_db_only.php): failed to open stream: No such file or directory in C:\Program Files\Apache Group\Apache2\htdocs\pro\POT\login\loginadmin.php on line 5

This error has come up because the program cannot locate the file, verify the file path to common_db_only.php.

Also, a word on your code.. you don't need to post your entire script, please only post the relevant snips and the related errors.

: )
Rich

::::::::::::::::::::::::::::::::::::::::::
The Spicy Peanut Project
http://www.spicypeanut.net
::::::::::::::::::::::::::::::::::::::::::

junemo · April 9th, 2004, 02:34 AM

But i stil have error message:
Warning: main(common_db_only.php): failed to open stream: No such file or directory in C:\Program Files\Apache Group\Apache2\htdocs\pro\POT\login\loginadmin.php on line 5

Warning: main(): Failed opening 'common_db_only.php' for inclusion (include_path='.;c:\php4\pear') in C:\Program Files\Apache Group\Apache2\htdocs\pro\POT\login\loginadmin.php on line 5

how to verify it? can give some example? because php language still new for me.

Thank you so much

nikolai · April 9th, 2004, 04:36 PM

Well, the error you're getting is that the file "common_db_only.php" is not found. You should check that this file exists and that PHP has permission to read it.

Take care,

Nik
http://www.bigaction.org/

junemo · April 19th, 2004, 11:04 PM

How about this error message? what is mean?
Warning: session_start(): Cannot send session cookie - headers already sent by (output started at C:\Program Files\Apache Group\Apache2\htdocs\pro\POT\general_info\newannou nce1.php:1) in C:\Program Files\Apache Group\Apache2\htdocs\pro\POT\general_info\newannou nce1.php on line 3

code attach:
<?

session_start();
include("common.php");

$conn = pg_open();

?>
<?php
/*insert values*/
if ($status==1)
{
     $query="select * from jabatan";
    $result=pg_exec($conn, $query) or die("Error in query: $query." .pg_last_error($conn));
    $rows = pg_numrows($result);

    $query1="select * from e_pengumuman";
    $result1=pg_exec($conn, $query1) or die("Error in query: $query1." .pg_last_error($conn));
    $rows1 = pg_numrows($result1);

    //form submitted
    //prepare to insert data
    //database access parameters

    for ($k=0; $k<$rows1; $k++)
    {
        $row1=pg_fetch_object($result1, $k);
    }
    $numrow=$row1->ep_id;

    {
        $numrow=$numrow+1;

        $query04="insert into e_pengumuman values('$numrow', '$addressField', 'PTM', '$dc1', '$dc2', '$ep_tajuk', '$ep_kandungan')";
        $dbres1=pg_send($query04);
    }
}
?>

thank you so much.
Warning: session_start(): Cannot send session cache limiter - headers already sent (output started at C:\Program Files\Apache Group\Apache2\htdocs\pro\POT\general_info\newannou nce1.php:1) in C:\Program Files\Apache Group\Apache2\htdocs\pro\POT\general_info\newannou nce1.php on line 3

richard.york · April 20th, 2004, 12:22 AM

Quote:

quote:Originally posted by junemo
How about this error message? what is mean?
Warning: session_start(): Cannot send session cookie - headers already sent by (output started at C:\Program Files\Apache Group\Apache2\htdocs\pro\POT\general_info\newannou nce1.php:1) in C:\Program Files\Apache Group\Apache2\htdocs\pro\POT\general_info\newannou nce1.php on line 3

session_start alters the outgoing HTTP headers that are sent out to the browser with every page request. In this function it sends out a cookie containing the session id. The HTTP headers must be sent before any content from the page, e.g. HTML code. Make sure that no whitespace appears before the opening <?php delimiter and that there is no other output after the <?php delimiter and before the call to session_start.

hth,
Rich

::::::::::::::::::::::::::::::::::::::::::
The Spicy Peanut Project
http://www.spicypeanut.net
::::::::::::::::::::::::::::::::::::::::::

junemo · April 20th, 2004, 01:03 AM

Hi Rich,
First, i feel so sorry because i still not understand about it. Can you change the code for me?

thanks.

richard.york · April 20th, 2004, 01:13 AM

Quote:

quote:Originally posted by junemo:

First, i feel so sorry because i still not understand about it. Can you change the code for me?

See the one single whitespace before the opening <?php delimiter? BTW, use <?php don't use <?.

Code:

Output before the call to session_start() is bad!  This can be text like this, HTML code, a single whitespace, a newline character.  Nothing!  I don't know how more clearly to put it.

Bad: 
 <?php

Good:
<?php

session_start();
include("common.php");


$conn = pg_open();

?>

hth,
Rich

::::::::::::::::::::::::::::::::::::::::::
The Spicy Peanut Project
http://www.spicypeanut.net
::::::::::::::::::::::::::::::::::::::::::

junemo · April 20th, 2004, 02:17 AM

hi Rich, thanks....
umm... but my code still have error:

Fatal error: Call to undefined function: pg_open() in C:\Program Files\Apache Group\Apache2\htdocs\pro\POT\general_info\newannou nce1.php on line 7
I hope you're not boring reply me and teach me the php. This is my first time to use the php for my training project.

Thanks a lot and have a nice day.
junemo.

richard.york · April 20th, 2004, 02:51 AM

pg_open is a user-defined function. You need to define the function in order for it to work. Meaning that, it is not a pre-defined function, pre-defined functions are those that are already available in PHP or via one of PHP's extensions. When you try to use a function and it isn't defined PHP chokes, it throws a E_FATAL level error and execution haults. pg is the prefix for PostgreSQL functions, but pg_open isn't a valid PostgreSQL function. Perhaps you mean to use pg_connect there, and if so not only do you need that function but you need to pass the required arugments to it as well.

See:
http://www.php.net/pg_connect

Its always helpful to read the manual!
http://www.php.net/manual

hth,
Rich

::::::::::::::::::::::::::::::::::::::::::
The Spicy Peanut Project
http://www.spicypeanut.net
::::::::::::::::::::::::::::::::::::::::::