PHP error

I'm trying to set up a GPT-site. When I want to test the redeem method, I get the following error:

Warning: mysql_fetch_array(): supplied argument is not a valid MySQL result resource in (blabla-link, not imporant)/redeem.php on line 39

I've tried some stuff, but nothing seems to be working. Does anybody know what the problem is? All tables and rows exist.

redeem.php code:

<?php include("function.php"); ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Inwisselen • <?php echo $siteName; ?></title> 
<?php include("headscript.php"); ?>
    <?php include("logscr.php"); ?>
</head>
<body>
<div id="wrapper">
  <div id="header">
    <div class="header_top">
      <div class="top">
        <div class="logo"> <a href="#"></a> </div>
      </div>
      <div class="clear"></div>
    </div>
    <div class="header_bottom">
<?php include("buttons.php"); ?>
       <?php include("menu.php"); ?>
    </div>
  </div>
  <div id="body">
    <div class="box">
        <?php
        if(isset($_SESSION["user"])){
        if(isset($_GET['id'])){ 
            $rewardId = mysql_real_escape_string($_GET['id']);
            $userId = $_SESSION["user"];
             $myPoints = mysql_result(mysql_query("SELECT points FROM balances WHERE userId = '$userId'"), 0);
             $rewardPoints = mysql_result(mysql_query("SELECT points FROM rewards WHERE rewardId = '$rewardId'"), 0);
             if($rewardPoints > $myPoints) {
                echo  "<h2>Inwisselen mislukt!</h2><p>Geen genoeg punten voor dit item.</p>";
             } else {
                  $reward = mysql_query("SELECT * FROM rewards WHERE rewardId = $rewardId");
                 echo "<h2>Bevestig koop!</h2>";
                 echo "<div style=\"padding:10px; border:1px solid #557453; background:url(../images/boxbg.png);\">";
                 while($row = mysql_fetch_array($reward))
  {
      echo "<h3>".$row['title']."</h3> <img style=\"margin:5px;\" src=\"". $row['img']."\" width=\"150\" height=\"150\" /><br />" .$row['desc']. "<br><h4 style=\"display:inline\">Huidig aantal punten:</h4> $myPoints <img src=\"images/point.png\" /><br> <h4 style=\"display:inline\">Punten:</h4> ". $row['points']." <img src=\"images/point.png\" /><br> <h4 style=\"display:inline\">Punten over:</h4> ". ($myPoints - $row['points'])." <img src=\"images/point.png\" /><br><br>";

      echo "<form id=\"orderForm\" action=\"order.php\" method=\"post\"> 
      <input type=\"hidden\"
      name=\"userId\" 
      value=\"$userId\"
      >
          <input type=\"hidden\"
      name=\"rewardId\" 
      value=\"$rewardId\"
      >
          <input type=\"hidden\"
      name=\"rewardTitle\" 
      value=\"".$row['title']."\"
      >
      ";
      if($row['type'] == "email"){
          echo "<input type=\"hidden\"
      name=\"type\" 
      value=\"email\"
      >";
          $userEmail = mysql_result(mysql_query("SELECT email FROM users WHERE userId = '$userId'"), 0);
        echo "<div class=\"box contactbox\"><h3 style='display:inline;'>Versturen naar...</h3><label><h4>Emailadres:</h4><input name=\"sendto\" value=\"$userEmail\" type=\"text\"></label></div>";
      } else if($row['type'] == "ship"){
                  echo "<input type=\"hidden\"
      name=\"type\" 
      value=\"ship\"
      >";
          $userEmail = mysql_result(mysql_query("SELECT email FROM users WHERE userId = '$userId'"), 0);
        echo "<div class=\"box contactbox\"><h3 style='display:inline;'>Versturen naar...</h3><label><h4>Straat + Huisnummer:</h4><input name=\"street\" value=\"\" type=\"text\"></label><label><h4>Stad:</h4><input name=\"city\" value=\"\" type=\"text\"></label><label><h4>Provincie:</h4><input name=\"state\" value=\"\" type=\"text\"></label><label><h4>Postcode:</h4><input name=\"zip\" value=\"\" type=\"text\"></label></div>";
      }



      echo "<a href=\"#\" onclick=\"javascript: document.forms['orderForm'].submit();\" ><img border:0px\" src=\"/images/purchase.png\" /></a><br><p>Na de aankoop worden de punten direct van je account afgehaald. Je krijgt een email binnen 24 uur met details. Als het product niet kan worden geleverd, worden je punten teruggestort.</p>";
  }
                echo "</form></div>"; 

             }




        } else {
            echo "<h2>Inwisselen mislukt!</h2><p>Je hebt op een ongeldige link geklikt.</p>";   
        }

        } else {
        echo "<h2>Inwisselen mislukt!</h2><p>Je moet hiervoor ingelogd zijn.</p>";  
        }

    ?>
    </div>
</div>

  <div id="footer">
        <ul>
    <?php include("footlinks.php"); ?>

    </ul>
  </div>
</div>
<?php include("footer.php"); ?>
</body>
</html>

2

Contributors

3

Replies

19 Hours

Discussion Span

1 Year Ago

Last Updated

4

Views

Question
Answered

public

Newbie Poster

3 posts since May 2012

Reputation Points: 0

Solved Threads: 0

Skill Endorsements: 0

1 Year Ago

1

$reward hasn't returned a resource. Your problem is the query. Echo out the query to see if it's what you expect. If so, copy if from the screen and run it in a phpmyadmin sql window - see what happens.

$reward = mysql_query("SELECT * FROM rewards WHERE rewardId = $rewardId");
echo "SELECT * FROM rewards WHERE rewardId = $rewardId";

diafol

Keep Smiling

Moderator

10,842 posts since Oct 2006

Reputation Points: 1,675

Solved Threads: 1,537

Skill Endorsements: 61

1 Year Ago

0

I got; SELECT * FROM rewards WHERE rewardId = fano

When in phpMyAdmin, I got this: #1054 - Unknown column 'fano' in 'where clause'

public

Newbie Poster

3 posts since May 2012

Reputation Points: 0

Solved Threads: 0

Skill Endorsements: 0

1 Year Ago

0

Fixed it, forgot the ''s in
$reward = mysql_query("SELECT * FROM rewards WHERE rewardId = '$rewardId'");

Thanks anyway.

public

Newbie Poster

3 posts since May 2012

Reputation Points: 0

Solved Threads: 0

Skill Endorsements: 0

Question Answered as of 1 Year Ago by diafol

PHP error

This question has already been solved: Start a new discussion instead