You can use SESSIONS to store persistent user preferences on your Website. Each session has a data store related to it and its content persists between pages.
To start using a session you need to call session_start(), but you have to remember:
- you can call session_start() just once per file
- you need to call it before the script generates any output (before you send any data to the browser)
Session_start() will load session data in the $_SESSION associative array.
The easiest way to store data in a session is:
$_SESSION[‘name’] = “value”;
Here a simple example about how to use $_SESSION:
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<?php //starting a session session_start(); //checking if session data about visits exists if( isset($_SESSION['visits']) ){ //incrementing visits counter $_SESSION['visits'] = $_SESSION['visits'] +1; } else { //creating a visits variable in session $_SESSION['visits'] = 1; } //accessing data from session echo "<p>You have been here <strong>" .$_SESSION['visits']. "</strong> times.</p>" ?> |
To end a session, you can use session_destroy()