help with creating a session

woodplease

Hi
i need help creating a session to store a users name. i just need a simple text box where the user can enter his or her name and press an enter site button or something. i also want to be able to display the users name on each page after that. i know how to open a session, its just making it so that the user enters their name i cant do. i have sorted out the logout page( a bit backwards i know). its just creating the initial session i cant seem to do. This is what i have so far, but it doesnt seen to be working.

 <form action="<?php
$_SESSION['USERNAME'] = $_POST['username'];
?>" method="post">
        <input type="text" name="name" id="username">
        <input type="submit" name="submit" value="Enter your name">
    </form>

<?php echo "User : ".$_SESSION['USERNAME']; ?>

Any help would be great.

Thanks

djjjozsi

<?php
if(isset($_POST["username"]))
{
$_SESSION['USERNAME']=$_POST["username"];
}
?>

on other pages:

<?php
if(isset($_SESSION['USERNAME']))
print "Your username is: " . htmlspecialchars($_SESSION['USERNAME']);
?>

paulnaj

Same as djjjozsi's but just clarifying the action attribute on the form ...

<?php
session_start();

if(isset($_POST['username'])){
	$_SESSION['USERNAME'] = $_POST['username'];
}
?>

<?php
if(!isset($_SESSION['USERNAME'])){
?>
<form action="<?php echo $_SERVER['PHP_SELF']; ?>" method="post">
	<label for="username"/>Enter your name</label>
	<input type="text" name="name" id="username" value=""/>
	<input type="submit" name="submit" value="Go"/>
</form>
<?php
} else {
	echo $_SESSION['USERNAME'];
}
?>

johanafm

Which can be simplified to

<form action=""

paulnaj

johanafm;10935242 wrote:
Which can be simplified to
<form action=""

... if the page with the form is the same page that responds to the form.

woodplease

thanks for the reply

i've tried the code but i have no way of knowing if it works because the code to put on other pages to dispaly the user doesnt work

if(isset($_POST['username'])){
    $_SESSION['USERNAME'] = $_POST['username'];
}

Any ideas?

thanks

djjjozsi

in your form the username field has a name tag: username ?

if its name, use $_POST["name"] in your script.

paulnaj

Hi,

Try running exactly what's on my (or djjjozi's) post in a separate file called test.php.

If it works, then your session variables are working and the problem will be elsewhere. If it doesn't work, then maybe your server isn't set up for sessions.

We can't guess what the problem is. 😉

djjjozsi

isset allows empty values. i changed the username field's name tag.

<?php
session_start();

if(!empty($_POST['name'])){
    $_SESSION['USERNAME'] = $_POST['name'];
}
?>

<?php
if(empty($_SESSION['USERNAME'])){
?>
<form action="<?php echo $_SERVER['PHP_SELF']; ?>" method="post">
    <label for="username"/>Enter your name</label>
    <input type="text" name="name" id="username" value=""/>
    <input type="submit" name="submit" value="Go"/>
</form>
<?php
} else {
    echo $_SESSION['USERNAME'];
}
?>

woodplease

right, i got this piece of code from my friend, also stuck on the same problem, but we keep getting this error

Parse error: syntax error, unexpected '}', expecting ';' in /berw/ugrad1/base/a/agd8/public_html/gameshack/login.php on line 19

<?php
session_start();

if(isset($_POST['username'])) {

$_SESSION['username'] = $_POST['username'];
echo "You are now logged in";

}

if(isset($_GET['logout'])) {

$logout = $_GET['logout'];

if($logout == "logout") {
$_SESSION = null;
unset($_SESSION['username'])

}
}
?>
<html>
<head>
<title> Login System </title>
</head>
<body>
<?php
if(isset($_SESSION['username'])) {
echo "Welcome ".$_SESSION['username']." to our site.";
}
?>
<br>
<center>
<h1>Website</h1>
</center>
<?php
if(!isset($_SESSION['username'])) {
?>
<form action="" method="post">
Username: <input type="text" name="username"><br>
<input type="submit" value="login">
</form>
<?php
}
?>
<br><br>
<?php
if(isset($_SESSION['username'])) {
?>
<form action="" method="get">
<input type="submit" name="logout" value="Logout">
</form>
<?php
}
?>
</body>
</html>

woodplease

thanks very much, you solved it, dont worry about the last post now