[RESOLVED] how to empty a form after a session

paldo

My order form consists of 3 pages linked with sessions. When I arrived to the page3 the order is validated and sent out by mail. How to force the cache to be emptied when returned to page 1? Can I do it with php or with javascript?

Here a small example: (or go to http://www.paolinet.info/sessions/sessions_test/page1.php)

page1.php

<?php
session_start();

echo "<form name=\"aaaa\" method=\"post\"  action=\"page2.php\">";
?> 


<?php
function select( $selection , $values )
{
    echo "<select name=\"$selection\">\n";
    foreach( $values AS $val ) {
        if ( isset( $_SESSION["$selection"] ) AND $_SESSION["$selection"] == $val )
            $selected = " selected=\"selected\"";
        else
            $selected = "";

    echo "\t<option value=\"$val\"$selected>$val</option>\n";
}
print "</select>\n";
}

?>
<?php
echo select( "selection1" , array( "0", "6", "12", "18","24", "30", "36", "42", "48" ) );
?>
<input type="submit" name="submit" value="continue" />
</form>

And page2:

<?php session_start();?>
<html>
<body>

<?php
$_SESSION['selection1'] = $_POST['selection1'];
$_SESSION['value'] = $_POST['value'];
$selection1 = $_POST['selection1'];
$value = $_POST['value'];

?>

<?php

    print "you ordered $selection1 ";
?>		

<input type="submit" name="submit" style="background-color:#00CC66" value="  validate your order" onClick="location.href='page3.php'">

<input type="submit" name="submit" style="background-color:#FF0000" value="  go back to change" onClick="location.href='page1.php'">
</body>
</html>

And page3:

 <?php session_start();?>

  <?php

  $selection1 = $_SESSION['selection1'];

mail($email,$subject,$message,$headers);

print "Thank you. You ordered $selection1.</br></br>";

?>

<input type="submit" name="submit" style="background-color:#FF0000" value="  go back to page1" onClick="location.href='page1.php'">

Thanks for any kind of help.

Shukaku

For a start, this is not correct in your first page:

?>
<?php
echo select( "selection1" , array( "0", "6", "12", "18","24", "30", "36", "42", "48" ) );
?>

Why are you stopping PHP, then just starting it up again in the next line? Remove the bold part in the quote above as it's not needed to do that.

In the same page, since almost all of the page is PHP, you are better off just including:

<input type="submit" name="submit" value="continue" /> 
</form>

inside the echo statement as well.

Also, you don't need to echo a function.

In page3.php, you're doing it again:

<?php session_start();?> 

  <?php

You don't need to end PHP just to start it again in the next line: that's inefficient and entirely stupid.

Just some of the many issues other people will likely find in your code.

dalecosp

You do, or do not, wish to destroy the entire session? If you do, [man]session_destroy/man is your friend.

paldo

Thank you. That's it!