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PHP Browser Persistent Data with PHP Data Persistence on the Web Checking for Sessions

Shubham Modi
Shubham Modi
662 Points

HOW DO I SOLVE THIS?

Check that each of the required session variables are not set before attempting to write the story. If the session variables are not set, redirect to play.php with the p parameter set to the first missing session variable.

story.php
<?php
session_start();
$word1 = htmlspecialchars($_SESSION['word'][1]);
$word2 = htmlspecialchars($_SESSION['word'][2]);
$word3 = htmlspecialchars($_SESSION['word'][3]);
$word4 = htmlspecialchars($_SESSION['word'][4]);
$word5 = htmlspecialchars($_SESSION['word'][5]);
if(empty($page))
{
  $_SESSION['word'][1] = 'play.php';
  unset($_SESSION['word'][2]);
  session_destroy();
  $page = 1;
}
include 'inc/header.php';

echo '<h1>My Treehouse Story</h1>';

echo '<p>There once was a(n) ' . $word1;
echo ' programmer named ' . $word2; 
echo '. </p>';
echo '<p>This ' .  $word3; 
echo ' programmer used Treehouse to learn to ' . $word4;
echo ' the ' . $word5 . '.</p>';

echo ' <a class="btn btn-default btn-lg" href="#" role="button">Save Story</a>';
echo ' <a class="btn btn-default btn-lg" href="play.php" role="button">Play Again</a>';
echo ' <a class="btn btn-default btn-lg" href="index.php" role="button">Other Stories</a>';


include 'inc/footer.php';