Passing variables

Anon

Hi everybody!
I've got problem with passing variables between pages.

I have page1.php with :

<form action="page2.php" method="POST">
<select name="subject" size=1>
<option> Chemistry
<option> Math
</select>
<input type=submit name="submit" value="Submit">
</form>

For example, user have chosen "Math"

page2.php:

/$student - 2D array with element [0][0] -Math /
if ($student[0][0]==$subject) {
echo $student[0][0]; // it's working o.k., prints "Math"

/ Then I need to pass $subject to page3.php /

page3.php
//page3.php has the same 2D array $student

echo $subject;
/ it's still working, prints Math /

But
if ($student[0][0]==$subject) {
echo $student[0][0]; // it's not working, it prints nothing.

Thank you in advance.

Stas.

Anon

PHP does not by default allow variables on page1.php to be accessed by page7.php

You're on the right track by trying to post information along... however, it would probably be much easier to try the following using sessions (if you're using PHP4):

<?PHP
// page 1
echo "<form action=page2.php method=post>";
echo "<input type=text name=something>";
echo "<input type=submit>";
echo "</form>";
?>

<?PHP
// page 2
echo "You typed: ";
echo $HTTP_POST_VARS['something'];
echo "...in that box back there.";
session_start();
$test = $HTTP_POST_VARS['something'];
session_register('test');
echo "<a href=page8.php>click here</a>";
?>

<?PHP
// page 8
session_start();
echo $test;
echo "<p>(wow, such a good memory");
?>

HTH... take a look at some of the information on http://www.php.net/manual/ at session functions. It's pretty cool stuff.

--Robert

Anon

Hi, Robert!
Thank for your quick response.
I'm using PHP3.
And may be I've missed something (or have not got something), but in page2.php variable $something exists, I can "echo" it.
But during comparison operation (next step)it looks like $something does not exist.
Any ideas?
Thank you.
Stas.