Hi,
I posted on this matter earlier with the subject line "Trouble with
sessions," but someone else started a different thread with the same
subject line that arrived before my post, so I'm changing my subject
line in order to avoid confusion.
I was asked to provide a code example for analysis, so here it is,
along with a
a description of what the problem is.
I'm working with sessions and the values for HTML text fields
(input="text") aren't getting updated after the first time I submit
the form. If I shut down my browser and start anew, I can write to the
session just once, as before. On the other hand, radio buttons -- used
with the Sticky Multivalued Parameters script on pages 170-171 of
O'Reilly's "Programmin g PHP" -- are updated every time. Here's an
example of my code. Many thanks to anyone who can make sense of what's
going on here.
Best wishes,
Mountain Man
<html>
<head>
<title>First Form Sessions</title>
</head>
<body>
<form action="form_pr ocessor.php4" method="POST">
First Name: <input type="text" name="firstName " value="<?php echo
$firstName ?>" /><br />
<input type="submit" />
</form>
</body>
</html>
// Next, the form processing script which is on another page.
// In my more complex script of actual use the form is only
// included if it doesn't pass validation.
<?php
session_start() ;
session_registe r("firstName" );
?>
<html>
<head>
<title>Form Processor Sessions</title>
</head>
<body>
<?php
echo "$firstName <br />";
include 'first_form.php 4';
?>
</body>
</html>
1  1794 
Mountain Man wrote: I'm working with sessions and the values for HTML text fields
(input="text") aren't getting updated after the first time I submit
the form. If I shut down my browser and start anew, I can write to the
session just once, as before. On the other hand, radio buttons -- used
with the Sticky Multivalued Parameters script on pages 170-171 of
O'Reilly's "Programmin g PHP" -- are updated every time. Here's an
example of my code. Many thanks to anyone who can make sense of what's
going on here.
Using php version >= 4.1? Then start using the $_SESSION superglobal:
<?
// Enable sessions
session_start() ;
// Get the page URL
$page = $_SERVER['PHP_SELF'];
// Destroy the session var
if (isset($_GET['unset'])) {
if (isset($_SESSIO N['test'])) {
unset($_SESSION['test']);
header("Locatio n: $page");
exit;
}
}
// Update/create the session var
if (isset($_SESSIO N['test'])) {
$_SESSION['test']++;
} else {
$_SESSION['test'] = 1;
}
// Debug output
print "test = {$_SESSION['test']}<br />";
print "<a href='$page?uns et=1'>Destroy session</a>";
?>
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Hi,
I'm having trouble with sessions. Text fields from a form aren't
getting updated when the form is resubmitted. On the other hand, my
radio buttons are updated every time.
Many thanks to anyone who can help with this.
Mountain Man
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