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

Thomas Morling
Thomas Morling
12,754 Points
Posted by Thomas Morling
Thomas Morling
12,754 Points

Can't get this to work Setting Session variables

Can't get this to work Setting Session variables

?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]);

include 'inc/header.php';

for ($i = 1; $i <= 5; $i++) {

 if ( ! isset($_SESSION['word'][$i]))
  {
    header("location: play.php?p=$i");
  } 

    if (! EMPTY($_SESSION[TRIM('word')][$i]))
      {
        header("location: play.php?p=$i");
      }

}

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';

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]);

include 'inc/header.php';

  for ($i = 1; $i <= 5; $i++)
  {

     if ( ! isset($_SESSION['word'][$i]))
      {
        header("location: play.php?p=$i");
      } 

        if (! EMPTY($_SESSION[TRIM('word')][$i]))
          {
            header("location: play.php?p=$i");
          }

   }

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';

1 Answer

Dekel Zoaretz
Dekel Zoaretz
14,864 Points
Dekel Zoaretz
Dekel Zoaretz
14,864 Points

after the session_start() add this block of code:

for ($i = 1; $i <= 5; $i++) {
  $tmp = trim($_SESSION['word'][$i]);
  if (empty($tmp)) {
    if ($i == 1) {
      header('location:play.php');
      exit;
    } else {
      header('location:play.php?p='.$i);
      exit;
    }
  }
}
Thomas Morling
Thomas Morling
12,754 Points
Thomas Morling
Thomas Morling
12,754 Points

Still can't get this to work. Get this error:

When $_SESSION['word'][2] is empty, you should redirect to the play.php page with the page parameter of "p" set to 2.