php delete session code example

Example 1: php delete session

session_destroy(); // To delete whole session
// OR
unset($_SESSION['myVar']); // To delete a session var

Example 2: clear session php

<?php
   unset($_SESSION['counter']);
?>

Example 3: destroy session php

<?php 
 session_start(); // start session
 session_destroy();  // Delete whole session
// OR
unset($_SESSION['username']); // delete any specific session only
?>

Example 4: php session destroy

<?php
// Destroy the currently active session.
session_destroy();
?>

Example 5: php destroy session after some time

// Create a session variable called something like this after you start the session:
$_SESSION['user_start'] = time();
 
// Then when they get to submitting the payment, just check whether they're within the 5 minute window
if (time() - $_SESSION['user_start'] < 300) { // 300 seconds = 5 minutes
    // they're within the 5 minutes so save the details to the database
} else {
    // sorry, you're out of time
   unset($_SESSION['user_start']); // and unset any other session vars for this task
}

Example 6: session value not removed php

All of a sudden neither session_destroy() nor $_SESSION=[] were sufficient to log out. I found the next to work:
<?php
setcookie(session_name(), session_id(), 1); // to expire the session
$_SESSION = [];
?>