Chart Formulae Unique To Sura - warwickfoster/qurantools GitHub Wiki

File: app/ajax/ajax_individual_letter_chart.php

Purpose

The primary purpose of this code is to:

  • Securely identify and authenticate a user.
  • Retrieve user input from a form.
  • Display the retrieved data in a formatted way.

PHP Code

<?php

session_start();
session_regenerate_id();

// basic security check here
if (!isset($_SESSION["UID"])) {
    exit;
}

require_once '../library/config.php';
require_once 'library/functions.php';

echo "<p>GETS = " . $_POST["S"] . "</p>";
echo "<p>GETV = " . $_POST["V"] . "</p>";

?>

Description

The PHP code snippet you provided is a server-side script that performs the following tasks:

  • Starts a PHP session.
  • Regenerates the session ID to enhance security.
  • Checks if a user is authenticated by verifying the existence of the UID session variable. If not, it exits the script.
  • Includes necessary configuration and functions from the library folder.
  • Retrieves and displays the values of $_POST["S"] and $_POST["V"] in HTML paragraphs.

Usage

This code is typically included in a PHP file that is accessed by a user after they have logged in. It is used to retrieve and display data that is submitted through a form.

Example

Suppose a user submits a form with the following input fields:

<input type="text" name="S">
<input type="text" name="V">

The PHP code above will display the values of these fields in the browser:

<p>GETS = [Value of S]</p>
<p>GETV = [Value of V]</p>

Additional Notes

  • The library/config.php and library/functions.php files should contain necessary configuration settings and functions for the application.
  • The UID session variable should be set when a user logs in successfully.
  • The alert("hello"); JavaScript code is not part of the PHP code snippet and is likely included in a separate HTML file.