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Groups > comp.lang.php > #15675

Re: A project involing sessions

From Jerry Stuckle <jstucklex@attglobal.net>
Newsgroups comp.lang.php
Subject Re: A project involing sessions
Date 2015-09-11 19:42 -0400
Organization A noiseless patient Spider
Message-ID <msvoov$dv1$1@dont-email.me> (permalink)
References <mste1n$4ru$1@ns2.nl2k.ab.ca> <msut27$211$2@dont-email.me> <msveg0$8jh$1@ns2.nl2k.ab.ca> <msvetf$a05$2@dont-email.me> <msvk01$ffq$1@ns2.nl2k.ab.ca>

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On 9/11/2015 6:18 PM, The Doctor wrote:
> In article <msvetf$a05$2@dont-email.me>,
> Jerry Stuckle  <jstucklex@attglobal.net> wrote:
>> On 9/11/2015 4:44 PM, The Doctor wrote:
>>> In article <msut27$211$2@dont-email.me>,
>>> Jerry Stuckle  <jstucklex@attglobal.net> wrote:
>>>> On 9/11/2015 11:22 AM, The Doctor wrote:
>>>>> In article <5QzIx.30597$Jh2.30280@fx31.iad>,
>>>>> Richard Damon  <Richard@Damon-Family.org> wrote:
>>>>>> On 9/10/15 10:24 PM, The Doctor wrote:
>>>>>>>   For about 6 months this has been stomping me.
>>>>>>>
>>>>>>> Now repeat the assignment from the previous project, only this time,
>>>>>>> instead of cookies use sessions. Since sessions are being used, it is
>>>>>>> unnecessary to have the seven day limit from the previous assignment.
>>>>>>> However users should only be able to download the file once per session.
>>>>>>>
>>>>>>>
>>>>>>
>>>>>> First question, What doesn't work? Just saying "this has been stomping 
>>>>>> me" doesn't help us.
>>>>>>
>>>>>> Second, you do know that sessions tend to use a cookie anyway to keep 
>>>>>> track of the session (the difference is that with sessions, the cookie 
>>>>>> just stores a session ID, and the rest of the data is stored on the 
>>>>>> server, with some automatic expiry procedure).
>>>>>
>>>>> So I have been reading.
>>>>>
>>>>>>
>>>>>>> And the download.php is
>>>>>>>
>>>>>>>
>>>>>>> <?php
>>>>>>>
>>>>>>> #start the session
>>>>>>> session_start();
>>>>>>>
>>>>>>> if
>>>>>>> (isset
>>>>>>> ($_POST['check'])
>>>>>>> AND
>>>>>>> (isset($_POST['email']))
>>>>>>> AND
>>>>>>> (empty($_SESSION['email']))
>>>>>>> )
>>>>>>>   {//user clicked form download button
>>>>>>> $customer_email = $_SESSION['email'];
>>>>>> because of the if, we know $_SESSION['email'] is empty, why are you 
>>>>>> trying to use it?
>>>>>>> if (!($customer_email)) {
>>>>>>>     $customer_email = $_GET['email'];
>>>>>>>     //$customer_email = $_SESSION['email'];
>>>>>>> }
>>>>>>>    //setcookie("sevendays", "email", time()+60*60*24*7);
>>>>>>>    $filepath = $_SERVER['DOCUMENT_ROOT']."/.php_files/acme_brochure.pdf";
>>>>>>>    if (file_exists($filepath)) {
>>>>>>>      header("Content-Type: application/force-download");
>>>>>>>      header("Content-Disposition:filename=\"brochure.pdf\"");
>>>>>>>      $fd = fopen($filepath,'rb');
>>>>>>>      fpassthru($fd);
>>>>>>>      fclose($fd);
>>>>>>> if (!($_GET['email'])) {
>>>>>>>     #the customer wants us to remember him/her for next time
>>>>>>>
>>>>>>>    $_SESSION['email'] = $customer_email;
>>>>>>>
>>>>>>> }
>>>>>>>   }
>>>>>>>
>>>>>>> }//end isset(check)
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> ?>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> What is not happening given these 2 files?
>>>>>>>
>>>>>>
>>>>>> If download.php isn't doing what you want, perhaps having it display a 
>>>>>> page with what it sees would be helpful to debug.
>>>>>>
>>>>>> When you are detecting the right conditions, then you can change the 
>>>>>> page to do the download, but still could show what the conditions were 
>>>>>> if you detect you shouldn't download. To go to 'production' you would 
>>>>>> then remove the debug output and display a nice error message on failure 
>>>>>> (right now you just give the user a white screen if they try a second 
>>>>>> download).
>>>>>>
>>>>>
>>>>> All right.  On my test, I just simply do not see the session ID.
>>>>>
>>>>
>>>> What have you done to debug the problem?  Do you have any error
>>>> messages?  Are you displaying error messages?
>>>>
>>>> On your development machine your php.ini file should have:
>>>>
>>>> error_reporting = E_ALL
>>>> display_errors = on
>>>>
>>>
>>> I will ask the instructor.
>>>
>>
>> You don't have your own development machine?  That's something every
>> developer needs.  Even if you don't need it in class, you will need it
>> when you start using PHP.
>>
> 
> On my proper server this is turned on.
> 
> This is a classroom instructor in this case.
> 

It doesn't matter if it's a classroom instructor or not.  If it's
homework, you should have your own server.  If you're doing the work in
class, you should be asking your instructor.

-- 
==================
Remove the "x" from my email address
Jerry Stuckle
jstucklex@attglobal.net
==================

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Thread

A project involing sessions doctor@doctor.nl2k.ab.ca (The Doctor) - 2015-09-11 02:24 +0000
  Re: A project involing sessions Richard Damon <Richard@Damon-Family.org> - 2015-09-11 08:30 -0400
    Re: A project involing sessions doctor@doctor.nl2k.ab.ca (The Doctor) - 2015-09-11 15:22 +0000
      Re: A project involing sessions Jerry Stuckle <jstucklex@attglobal.net> - 2015-09-11 11:49 -0400
        Re: A project involing sessions doctor@doctor.nl2k.ab.ca (The Doctor) - 2015-09-11 20:44 +0000
          Re: A project involing sessions Jerry Stuckle <jstucklex@attglobal.net> - 2015-09-11 16:53 -0400
            Re: A project involing sessions doctor@doctor.nl2k.ab.ca (The Doctor) - 2015-09-11 22:18 +0000
              Re: A project involing sessions Jerry Stuckle <jstucklex@attglobal.net> - 2015-09-11 19:42 -0400
    Re: A project involing sessions Jerry Stuckle <jstucklex@attglobal.net> - 2015-09-11 11:46 -0400
      Re: A project involing sessions doctor@doctor.nl2k.ab.ca (The Doctor) - 2015-09-11 20:44 +0000
        Re: A project involing sessions Jerry Stuckle <jstucklex@attglobal.net> - 2015-09-11 16:52 -0400

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