Re: PHP issue on FreeBSD

From: Andrew Karjagin (Andrew.Karjagin_at_newmail.ru)
Date: 05/26/04

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    To: <wayne@staff.msen.com>, <freebsd-isp@freebsd.org>
Date: Wed, 26 May 2004 09:11:48 +0400

    Hello Michael R. Wayne

    I have also such problems with PHP 4.3.5 and up with FreeBSD 4.9.
    For example, when I use php.ini file, PHP variables (function phpinfo()) doesn't transmitted to php scripts.
    When I remove php.ini and restart apache, everything works fine with default php params.
    Analog installation on Linux Slackware 8 works fine with php.ini.

    Вт, 25.05.2004 22:00:05 you wrote:
    >
    MRW>
    MRW> I'm mentioning this here becasue the PHP list seems not to have a
    MRW> clue and I had someone test this on both Mac and Linux and it works
    MRW> OK there.
    MRW>
    MRW> I updated a jail running on FreeBSD 4.8 from Apache 1.3.26 PHP 4.1.2
    MRW> to Apache 1.3.31 PHP 4.3.6 and sessions broke. All the gory details
    MRW> are included below from a post I made to the PHP list. I'm looking
    MRW> for ideas as to how to debug this, ANY clues would be appreciated.
    MRW>
    MRW> /\/\ \/\/
    MRW>
    MRW>
    MRW> Session support worked fine in 4.1.2. It's broken in 4.3.4 and 4.3.6.
    MRW>
    MRW> The relevant session variables are:
    MRW> Session Support enabled (as per phpinfo)
    MRW> session.auto_start On or Off (makes no difference)
    MRW> session.use_cookies Off <- not using cookies
    MRW> session.name PHPSESSID
    MRW> session.use_trans_sid Off (trans_sid worked with forms in 4.1.2)
    MRW> session.gc_maxlifetime 1440
    MRW> Other things people have asked about:
    MRW> url_rewriter.tags a=href,area=href,frame=src,input=src,form=fakeentry
    MRW>
    MRW> Environment
    MRW> FreeBSD 4.8, Apache/1.3.31 (Unix) PHP/4.3.6 mod_ssl/2.8.17 OpenSSL/0.9.7d
    MRW>
    MRW> The session directory is writable and the files are getting properly
    MRW> written to that directory as shown below.
    MRW>
    MRW> I invoke the script from a browser and see the following:
    MRW> Stage:0 SessionID: 509012dd5633cba355c270f3934d1201
    MRW> _______ [Submit]
    MRW> Stage:1 SessionID: 509012dd5633cba355c270f3934d1201
    MRW> Request: Array ( )
    MRW> GET: Array ( ) POST: Array ( [field] => ) COOKIE: Array ( )
    MRW>
    MRW> Checking the session directory, I see an appropriately named file:
    MRW> -rw------- 1 nobody msen 10 May 25 12:00 sess_509012dd5633cba355c270f3934d1201
    MRW> containing
    MRW> stage|i:1;
    MRW> The Apache log contains two lines. The first does not contain the
    MRW> browser version and the second one does:
    MRW> "GET /g/xxx.php HTTP/1.0"
    MRW> "GET /g/xxx.php HTTP/1.0" 200 476 "-" "Mozilla/4.0 (compatible; MSIE 6.0; MSIE 5.5; Windows 98) Opera 7.02 [en]"
    MRW>
    MRW> So I enter foo in the form and hit Submit. The browser screen shows
    MRW> that the script failed to use the session variable, but it remembers
    MRW> it:
    MRW> Stage:0 SessionID: d7002911afdc01a5218e06af2b8f02ad
    MRW> foo____ [Submit]
    MRW> Stage:1 SessionID: d7002911afdc01a5218e06af2b8f02ad
    MRW> Request: Array ( [PHPSESSID] => 509012dd5633cba355c270f3934d1201 [field] => foo )
    MRW> GET: Array ( [PHPSESSID] => 509012dd5633cba355c270f3934d1201 ) POST: Array ( [field] => foo ) COOKIE: Array ( )
    MRW> The session directory now contains TWO files:
    MRW> -rw------- 1 nobody msen 10 May 25 12:00 sess_509012dd5633cba355c270f3934d1201
    MRW> -rw------- 1 nobody msen 10 May 25 12:03 sess_d7002911afdc01a5218e06af2b8f02ad
    MRW> each containing:
    MRW> stage|i:1;
    MRW> and the Apache log once again has two lines. The browser has passed back
    MRW> the original session ID but PHP has ignored it and assigned a new one.
    MRW> "POST /g/xxx.php?PHPSESSID=509012dd5633cba355c270f3934d1201 HTTP/1.0" 200 605
    MRW> "POST /g/xxx.php?PHPSESSID=509012dd5633cba355c270f3934d1201 HTTP/1.0" 200 605 "http://SERVER/xxx.php" "Mozilla/4.0 (compatible; MSIE 5.0; Windows 2000) Opera 6.05 [en]"
    MRW>
    MRW> Now, I hit Submit once more and PHP does manage to re-use the session! And it
    MRW> will continue to do so until the script is re-invoked by another browser:
    MRW> Stage:1 SessionID: d7002911afdc01a5218e06af2b8f02ad
    MRW> foo____ [Submit]
    MRW> Stage:1 SessionID: d7002911afdc01a5218e06af2b8f02ad
    MRW> Request: Array ( [PHPSESSID] => d7002911afdc01a5218e06af2b8f02ad [field] => foo )
    MRW> GET: Array ( [PHPSESSID] => d7002911afdc01a5218e06af2b8f02ad ) POST: Array ( [field] => foo ) COOKIE: Array ( )
    MRW> the session directory remains unchanged other than access time on the
    MRW> reused session:
    MRW> -rw------- 1 nobody msen 10 May 25 12:00 sess_509012dd5633cba355c270f3934d1201
    MRW> -rw------- 1 nobody msen 10 May 25 12:13 sess_d7002911afdc01a5218e06af2b8f02ad
    MRW> each containing:
    MRW> stage|i:1;
    MRW> The Apache log once again contains two lines:
    MRW> "POST /g/xxx.php?PHPSESSID=d7002911afdc01a5218e06af2b8f02ad HTTP/1.0" 200 605
    MRW> "POST /g/xxx.php?PHPSESSID=d7002911afdc01a5218e06af2b8f02ad HTTP/1.0" 200 605 "http://SERVER/xxx.php?PHPSESSID=509012dd5633cba355c270f3934d1201" "Mozilla/4.0 (compatible; MSIE 5.0; Windows 2000) Opera 6.05 [en]"
    MRW>
    MRW> And, finally, here is the test script. Install it as xxx.php if you want to test it:
    MRW>
    MRW> <?
    MRW> if (!session_id()) session_start();
    MRW> if (!isset($_SESSION['stage'])) $_SESSION['stage'] = 0;
    MRW> if (!isset($_POST['field'])) $_POST['field'] = "";
    ?>>
    MRW> <html><head><title>PHP Test page</title></head><body>
    MRW> <?
    MRW> echo "Stage:"; echo $_SESSION['stage'];
    MRW> echo " SessionID: "; echo session_id();
    MRW> $_SESSION['stage'] = 1;
    ?>>
    MRW> <form method="post" action="xxx.php?<?= SID; ?>">
    MRW> <input type="text" maxlength="7" size="7" name="field" value="<?echo $_POST['field']?>">
    MRW> <input type="submit" value="Submit">
    MRW> </form>
    MRW> <?
    MRW> echo "Stage:"; echo $_SESSION['stage']; echo " ";
    MRW> echo " SessionID: "; echo session_id(); echo "<br>";
    MRW> echo " Request: "; print_r($_REQUEST);
    MRW> echo "<br>GET: "; print_r($_GET); echo " POST: "; print_r($_POST); echo " COOKIE: "; print_r($_COOKIE);
    MRW>
    ?>>
    MRW> </body></html>
    MRW>
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