What are the different methods to store and update a value in PHP without using a text file or database?

One way to store and update a value in PHP without using a text file or database is to use sessions. Sessions allow you to store data that is accessible across different pages on a website. You can set a session variable to store the value and update it as needed throughout the user's session. 

<?php
session_start();

// Set initial value
$_SESSION['value'] = 10;

// Update value
$_SESSION['value'] += 5;

// Access value
echo $_SESSION['value'];
?>

Keywords

PHP variables sessions cookies caching

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