php sessions
<?php
// Start new or resume existing session.
session_start();
// Add values to the session.
$_SESSION['item_name'] = 'value'; // string
$_SESSION['item_name'] = 0; // int
$_SESSION['item_name'] = 0.0; // float
// Get session values.
$value = $_SESSION['item_name'];
?>@page session
Why set <@page session = "false">?
One reason would be performance and memory.
If you have a page that doesn't need to be involved in a session
(like say, an about.jsp or faq.jsp)
then the default behaviour of involving every JSP in a session will
impose the overhead of creating a new session object
(if one doesn't already exist) and increased memory usage as more
objects reside on the heap.create session in php
<?php
// Start the session
session_start();
// Set session variables
$_SESSION["color"]= "blue";
$_SESSION["animal"]= "dog";
echo "The session variable are set up.";
?>php session
/*Sessions are stored on the server
Sessions are a way to carry data across multiple pages.
Typically if we set a variable on one page, it wouldn't be available
on the next page. This is where Sessions come in. Unlike cookies session
data is not stored on the user's computer. It is stored on the server.
In order to use session variables you have to start a session.
Every page, that you want to use that data in, you have to use
session_start.
If you want to unset one of these sessions you can use session_unset
youcan destry the session with session_destroy
*/
<?php if(isset($_POST['submit']))
{ session_start(); // that will start the session
$_SESSION['name'] = htmlentities($_POST['name']);
$_SESSION['email'] = htmlentities($_POST['email']);
header('Location: page2.php'); } ?>
<!DOCTYPE html>
<html>
<head>
<title>PHP Sessions</title>
</head>
<body>
<form method="POST" action="<?php echo $server['PHP_SELF'];?>">
<input type="text" name="name" placeholder="Enter Name">
<br>
<input type="text" name="email" placeholder="Enter Email">
<br>
<input type="submit" name="submit" value="submit">
</form>
</body>
</html>Copyright © 2021 Codeinu
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