[Resolved] [Resolved] PHP Session Question

mingmangat

Hi, I'm trying to learn about PHP's session. But, I still get problem. Here's a script (form.php) that I made. I wondering why the value of the input text field (<input>) didn't change when I enter C++ and press the Send button.

<?php
session_start();
if (!isset($SESSION['lang'])) {
$SESSION['lang'] = 'PHP';
} else {
$SESSION['lang'] = $POST['progLang'];
}
?>
<form action="form.php" method="post">
Prog Language: <input type="text" name="progLang" id="progLang" value="<?php echo $_SESSION['lang'] ?>">
<input type="submit" value="Send">
</form>

I use PHP4.3 and register_globals = off

Thank you for the help.

Regards,

MingM.

devinemke

<?php
session_start();

if (isset($_POST['lang'])) {$_SESSION['lang'] = $_POST['lang'];}
else {$_SESSION['lang'] = 'PHP';}
?>

<form action="" method="post">
Prog Language: <input type="text" name="lang" value="<?php echo $_SESSION['lang']; ?>">
<input type="submit" value="Send"> 
</form>

mingmangat

Thank you devinemke. It works.

PHP session is the biggest problem for me as a newbie :-) Your answer starting to open my mind.

I've tried to do some modification with the source you sent.

<?php 
session_start(); 

if (isset($_POST['lang'])) {
    $_SESSION['lang'] = $_POST['lang'];
} else {
    $_SESSION['lang'] = 'PHP';
} 
?>

Link: 
<a href="?type=procedural&<?php echo strip_tags(SID) ?>">Procedural Language</a>
<a href="?type=objectoriented&<?php echo strip_tags(SID) ?>">Object Oriented Language</a>

<form action="" method="post"> 
    Prog Language: <input type="text" name="lang" value="<?php echo $_SESSION['lang']; ?>"> 
    <input type="submit" value="Send"> 
</form>

I tried to input C++ into the <input> field and then pressing enter. After that, I click one of the link (Procedural Language). But, the value of the input box back to 'PHP'. I wondering why this can happen. Do you have any idea how to make the value of the <input> field don't change eventhough I click the link?

Thank you.

devinemke

<?php  

session_start();  

if (!isset($_SESSION['lang'])) {$_SESSION['lang'] = 'PHP';}
if (isset($_POST['lang'])) {$_SESSION['lang'] = $_POST['lang'];}  

?> 

Link: 
<a href="?type=procedural&<?php echo strip_tags(SID) ?>">Procedural Language</a> 
<a href="?type=objectoriented&<?php echo strip_tags(SID) ?>">Object Oriented Language</a> 

<form action="" method="post">
Prog Language: <input type="text" name="lang" value="<?php echo $_SESSION['lang']; ?>">
<input type="submit" value="Send">
</form>

mingmangat

Thank you devinemke. It works.