PHP Session Help [closed]

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I have read up on how to use Sessions in PHP but I am struggling to understand and implement it. After looking at some examples on Google, they all seem vague and too complex. What I am trying to implement is the following:

The user logs in, when the submit button is pressed, they are redirected to another page where the user's name will show 开发者_如何学JAVAup. Could you help me with doing this by showing simple examples?

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Start the session on each page

<?php session_start(); ?>

Set a variable in the session array.

<?php $_SESSION['username'] = 'Roel Veldhuizen'; ?>

And echo a variable, on the same or other page

<?php echo $_SESSION['username'];?>

Can't make it any simpler. You should do some checkings for security.

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php.net provides a lot of documentation and examples. I've written a bit of example code below.

Script that handles the form input:

session_start();
$_session['name'] = $_POST['name'];
header('location: nextpage.php');

nextpage.php

session_start();
echo 'Your name is: '.$_SESSION['name'];

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No clue what you are having trouble with, but seems like you have a form that submits to a PHP page, and want the username to display on that page, and be displayed on all pages afterwards.

Sample Form:

<form name="submitName" action="saveName.php" method="POST">
    Name: <input type="text" name="usersName" /><br>
    <input type="submit" value="Continue" />
</form>

PHP to Process Form (saveName.php)

<?php
    session_start(); // Starts the session so you can save the name
    $name = $_POST['usersName']; // Get the name submitted
    $_SESSION['name'] = $name; // Save the name in a session
    echo strip_tags($name); // Output the user's name to the HTML page, after removing PHP and HTML tags from string
?>

On later pages, $_SESSION['name'] contains the user's name.

<?php
    session_start();
    if(isset($_SESSION['name'])) {
        echo $_SESSION['name'];
    }
    else {
        echo <<<USERFORM
<form name="submitName" action="saveName.php" method="POST">
    Please enter your name: <input type="text" name="usersName" /><br>
    <input type="submit" value="Continue" />
</form>
USERFORM;
    }
?>

If you redefine your question, we can help more.

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If you want to implement a Login system using Session. in my earlier post i have explained on how to deal with it.

have a look at this post and check for my answer. Login System Using PHP Session.