session not working on page 3 can you help

[andrw123]

session not working on page 3 can you help

session ..cant get it to work on page 3 it will not display anyhting on page 3
whhat i do wrong

page1.php

    php:// start the session
    session_start();
    header("Cache-control: private"); //IE 6 Fix
    // Get the user's input from the form
       $1 = $_POST['1'];
       $2 = $_POST['2'];
       $3 = $_POST['3'];
    // Register session key with the value
       $_SESSION['1'] = $1;
       $_SESSION['2'] = $2;
       $_SESSION['3'] = $3
    ;


<form action="page2.php" method="post">
<input name="1" type="radio" value="1">1
<br>
<input name="2" type="radio" value="2">2
<br>
<input name="3" type="radio" value="3">3

<input type="submit" value="Next &raquo;">
?>

page2

    php:<?php
    // start the session
    session_start();
    header("Cache-control: private"); //IE 6 Fix
    // Get the user's input from the form
       $1 = $_POST['1'];
       $2 = $_POST['2'];
       $3 = $_POST['3'];
    // Register session key with the value
       $_SESSION['1'] = $1;
       $_SESSION['2'] = $2;
       $_SESSION['3'] = $3
    ;

if ($_POST['1'] == 'true') {

echo $_SESSION['1'];
echo $_SESSION['2'];
echo $_SESSION['3'];

}?>
<form action="page3.php" method="post">
<input name="a" type="radio" value="a">a
<br>
<input name="b" type="radio" value="b">b

<input type="submit" value="Next &raquo;">

page3

   <?php
    // start the session
    session_start();
    header("Cache-control: private"); //IE 6 Fix
    // Get the user's input from the form
       $1 = $_POST['1'];
       $2 = $_POST['2'];
       $3 = $_POST['3'];

   $a = $_POST['a'];
   $b = $_POST['b'];
// Register session key with the value
   $_SESSION['1'] = $1;
   $_SESSION['2'] = $2;
   $_SESSION['3'] = $3

    $_SESSION['a'] = $a
     $_SESSION['b'] = $b
;


echo $_SESSION['1'];
echo $_SESSION['2'];
echo $_SESSION['3'];

echo $_SESSION['a'];
echo $_SESSION['b'];

}
?>
<form action="page4.php" method="post">
<input name="c" type="radio" value="c">c
<br>
<input name="c" type="radio" value="c">d

<input type="submit" value="Next &raquo;">

[thorpe]

nothing to do with sessions. variables cannot start with numbers in php so your code shouldn't really work on page one. and i assume, if you had error reporting set to E_ALL, you would see an error or warning of some sort.

on top of that.... you are going over the previous pages session values with each new page.

[andrw123]

oh hte number i just put some generic thing a bc 1223

i did put
error_reporting(E_ALL);
i got a bunch of
Notice: Undefined variable

but i already denfined like this
am do it right?

$1 = $POST['1'];
$2 = $POST['2'];
$3 = $_POST['3'];

[thorpe]

no... because on page 2 and 3 there are no values being passed to $POST['1'] etc etc. you should always check to see if the variable your after has been set. eg;

if (isset($_POST['1'])) {
  $var1 = $_POST['1'];
}

on top of that, the whole point of sessions is that they hold there value accross multiple pages... you need to keep trying to re populate them. example.
page1.php

<?php
  session_start();
  $_SESSION['hi'] = "hello";
  echo $_SESSION['hi']." <a href=\"page2.php\">p2</a>";
?>

page2.php

<?php
  session_start();
  echo $_SESSION['hi']." <a href=\"page3.php\">p2</a>";
?>

page3.php

<?php
  session_start();
  echo $_SESSION['hi'];
?>

as you'll see, we set the $SESSION['hi'] var on page one, and it remains intact on page 2 and 3.

[Rodney_H_]

Oops.. Thorpe has gotcha covered... (sorry) 😃

[andrw123]

yeah thank you very clear i tried that out it worked great but
it gets confusing when
i have couple checkboxes on page 1 then couple checkboxes on page and some radiobuttons on page3 so do i set everything on page 1
or some on page 1 some on page 2 and so on
this is wherel i get confused

[andrw123]

ok i think i got it
i using this and and it wont work

if (isset($POST['somthinghere'])) {
echo $SESSION['somthinghere'];
}

this worked
echo $_SESSION['somthinghere'];

just wondering how can i use if to check see which box was selected before do echo

[andrw123]

what i want is when user selected A on page 1 then go to page 2 selcted B than go to page3 selectec C
then it will combine all the selections and will display output

//this dont work
if (isset($POST['somthinghere'])) {
echo $SESSION['somthinghere'];
}

//this dont work
if (isset($POST['somthinghere']) and ($POST['somthinghere']) or ($POST['somthinghere'])) {
echo $SESSION['somthinghere'];
}

[chads2k2]

Just so I can throw my $.02 in this.

I always take checkboxes in as array's then convert them to strings using implode then transfer them to session variables. That way whenever i need the checkbox values again I can just do a explode() and turn them back into an array. Do a quick little array_search() on them and you got yourself a fine little script.

I might be all wrong, but it's the best I have come up with for the moment.
Chad
www.50marketing.com