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php variables not being passed using $_SESSION

MFA

By MFA
in PHP Coding Help

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MFA Member

MFA

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Posted

my variables from page 1 are not being sent to page 2 using sessions. i have tried to echo them and it is not working. when i use print_r for the sessions on page2.php, all i see is "array()" on my site. can someone please help.

 

page1.php

<?php

session_start();

 

{

 

$_SESSION['questionsession'] = $question;

$_SESSION['asession'] = $a;

$_SESSION['bsession'] = $b;

$_SESSION['csession'] = $c;

$_SESSION['dsession'] = $d;

$_SESSION['esession'] = $e;

$_SESSION['answersession'] = $answer;

$_SESSION['correctsession'] = $correct;

 

}

?>

 

page2.php

 

 

<?php

session_start();

 

$question = $_SESSION['questionsession'];

$a = $_SESSION['asession'];

$b = $_SESSION['bsession'];

$c = $_SESSION['csession'];

$d = $_SESSION['dsession'];

$e = $_SESSION['esession'];

$answer = $_SESSION['answersession'];

$correct = $_SESSION['correctsession'];

 

echo $question; // NOT WORKING!!

 

 

?>

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Jessica Advanced Member

Jessica

Posted
Posted

That's weird. I'd expect that to produce a warning, but ok.

 

It's probably something to do with the rest of your code, but we can't tell if you don't post it. try adding print_r($_SESSION); after defining them. 

 

You're also doing a LOT of unnecessary typing the way you have it. You could probably just put the row you get from MySQL directly into the session. 

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MFA Member

MFA

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did it and got "Array ( [questionsession] => Which of the following is a side effect of furesomide? [asession] => Sample answer A [bsession] => Sample answer B [csession] => Sample answer C [dsession] => Sample answer D [esession] => Sample answer D [answersession] => The answer is [insert explanation]. If you see this text, SYSTEM works. [correctsession] => B )" so it seems to work.

 

It's probably something to do with the rest of your code, but we can't tell if you don't post it. try adding print_r($_SESSION); after defining them.

 

mcq.php

 

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<?php

session_start();

?>

 

<html xmlns="http://www.w3.org/1999/xhtml">

<head>

<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />

<title>Untitled Document</title>

</head>

 

<body>

 

<?php

 

include 'dbyear2.php';

 

$qnumber = ($_REQUEST['uqn']); // obtain question number from URL

 

$find = mysqli_query($condbyear2, "SELECT * FROM Renal WHERE UQN='$qnumber'");

 

$retrieve=mysqli_fetch_assoc($find);

 

 

{

$question = $retrieve['question'];

$a = $retrieve['MCQ_A'];

$b = $retrieve['MCQ_B'];

$c = $retrieve['MCQ_C'];

$d = $retrieve['MCQ_D'];

$e = $retrieve['MCQ_E'];

$answer = $retrieve['answer'];

$correct = $retrieve['MCQ_correct'];

 

}

 

{

 

$_SESSION['questionsession'] = $question;

$_SESSION['asession'] = $a;

$_SESSION['bsession'] = $b;

$_SESSION['csession'] = $c;

$_SESSION['dsession'] = $d;

$_SESSION['esession'] = $e;

$_SESSION['answersession'] = $answer;

$_SESSION['correctsession'] = $correct;

 

}

 

 

?>

 

 

 

<form action='check.php' method='POST'>

 

<table width="90%" border="0%" cellpadding="6" align="center">

 

<tr><td width="6%"></td><td width="94%"><?php echo $question; ?></td></tr>

<tr></tr>

<tr><td><input type='radio' name='group1' value='A' /></td><td> <?php echo $a; ?></td></tr>

<tr><td><input type='radio' name='group1' value='B' /></td><td> <?php echo $b; ?></td></tr>

<tr><td><input type='radio' name='group1' value='C' /></td><td> <?php echo $c; ?></td></tr>

<tr><td><input type='radio' name='group1' value='D' /></td><td> <?php echo $d; ?></td></tr>

<tr><td><input type='radio' name='group1' value='E' /></td><td> <?php echo $e; ?></td></tr>

<tr></tr>

<tr><td><input type="submit" value="Submit"></td></tr>

 

 

 

 

 

</table>

 

</form>

 

 

 

 

</body>

</html>

 

check.php

 

 

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<?php

session_start();

?>

 

<html xmlns="http://www.w3.org/1999/xhtml">

<head>

<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />

<title>Untitled Document</title>

</head>

 

<body>

 

<?php

 

include 'dbyear2.php';

 

$question = $_SESSION['questionsession'];

$a = $_SESSION['asession'];

$b = $_SESSION['bsession'];

$c = $_SESSION['csession'];

$d = $_SESSION['dsession'];

$e = $_SESSION['esession'];

$answer = $_SESSION['answersession'];

$correct = $_SESSION['correctsession'];

 

 

 

// must insert table here again

 

$choice = $_POST['group1'];

 

echo $question;

 

if (!isset($choice))

{

echo "You did NOT select an answer. The correct choice was $correct";

}

else if

($choice == $correct)

{

echo "Well done - You chose the correct answer $correct";

 

}

else

{echo "Incorrect answer! - The correct choice was $correct";

 

}

 

echo "$answer"; // Copy the detailed answer here

 

 

 

// end session? and destroy the set varaibles? - as this is 1MCQ answer mode not TEST mode.

 

?>

 

 

 

</body>

</html>

 

 

 

You're also doing a LOT of unnecessary typing the way you have it. You could probably just put the row you get from MySQL directly into the session.

 

yeah, true but i'm using the variables in my form so its quicker to type then session[''] each time. but i suppose it would be the same if i just did what you said cause i wouldnt have to waste time assigning variables.

 

thank you.

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  • 4 weeks later...
MFA Member

MFA

Posted
  • Author
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So, I finally fixed it. And for anyone else who has/will suffer(ed) from a similar problem, the solution was to reset your CGI error log. Mine was saying:

 

20130316T222720: www.webaddress.com/webpage.php
PHP Warning:  session_start(): open(/var/php_sessions/sess_8dc57575562c346dcdf093266d7a46e4, O_RDWR) failed: No such file or directory (2) in /hermes/waloraweb077/b1980/webaddress.com/webpage.php on line 2
PHP Warning:  Unknown: open(/var/php_sessions/sess_8dc57575562c346dcdf093266d7a46e4, O_RDWR) failed: No such file or directory (2) in Unknown on line 0
PHP Warning:  Unknown: Failed to write session data (files). Please verify that the current setting of session.save_path is correct (/var/php_s

 

And yes, the session.save_path was in the correct place (not sure why it was saying that).
 

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