Question

I am trying to get the row queried in preceding code to echo inside of this if conditional if the user clicks the modify video link. However, when I echo the $video variable directly above the if ($videoEdit) { conditional, it displays on page, but if I try to echo it inside the if ($videoEdit) { conditional, it will not output for some reason. I’m confused. Here is my code (query not included, but echo $video does output proper results before conditional)

Addition:::

require ('../mysql_connect.php'); // Connect to DB

    // Handle Video Edit
   if ($_GET['video'] == "EDIT") {

$videoEdit = TRUE;

   }

    $query = "SELECT inventory.inv_key, inventory.mdl_key, inventory.serial, inventory.date_aquired, inventory.location, inventory.price, model.mdl_key, model.man_key, model.cls_key, model.sub_cls_key, model.model, model.video, model.picture, model.pdf, subclass.sub_cls_key, subclass.subclass, class.cls_key, class.class, manufacturer.man_key, manufacturer.manufacturer FROM inventory, manufacturer, model, class, subclass WHERE inventory.mdl_key='$_GET[mdl_key]' AND model.mdl_key='$_GET[mdl_key]' AND class.cls_key='$_GET[cls_key]' AND subclass.sub_cls_key='$_GET[sub_cls_key]' AND manufacturer.man_key='$_GET[man_key]' AND manufacturer=manufacturer.manufacturer AND class=class.class AND subclass=subclass.subclass";
$result = @mysql_query ($query); // Run the query

while ($row = mysql_fetch_array 
($result, MYSQL_ASSOC)) {
$model = $row['model'];
$mdl_key = $row['mdl_key'];
$video = $row['video'];
$picture = $row['picture'];
$pdf = $row['pdf'];
$description = $row['description'];
$manufacturer = $row['manufacturer'];
$man_key = $row['man_key'];
}

Addition Above::::

if ($_GET['video'] == 'EDIT') { 
$videoEdit = TRUE; 
}

while ($row = mysql_fetch_array($result)) {
$video = $row['video'];
}

if ($videoEdit) { // <-- boolean comparison
echo '<form action="edit_media.php" method="post">
<p>Video Link: <input type="text" name="serial" size="25" maxlength="100" value=';
       if (isset($video))
            echo $video;
        }
            echo ' /></p><p><input type="submit" name="submit" value="Submit Video" /></p>               <input type="hidden" name="submitted" value="TRUE" />
        </form>';
}

Addition:: this is, in my code, directly below the above code

if ($video != "") {
    echo '<iframe width="420" height="315" src=' . $video . ' frameborder="0" allowfullscreen></iframe> | <a href=edit_media.php?video=EDIT&mdl_key=' . $mdl_key . '&man_key=' . $man_key . '>Modify Video Link</a>';
} else {
    echo "Video Not Present | <a href=edit_media.php?video=EDIT>Add a Video</a>";
}

Answer 1

Most likely, $video is not set.

You should try to echo $video; after the while loop. Also, you should not be using a loop unless if you’re only fetching a single result.

$row = mysql_fetch_array($result);
$video = $row['video'];
echo $video;

Update

Here’s how I would approach your problem (obviously replacing mysql_ functions):

if ($_GET['video'] == 'EDIT') { 
    $result = mysql_query("SELECT ... ");
    $row = mysql_fetch_array($result);
    $video = $row['video'];

    echo '<form action="edit_media.php" method="post">
    <p>Video Link: <input type="text" name="serial" size="25" maxlength="100" value='";
    if (isset($video)) {
        echo $video;
    }

    echo '" /></p><p><input type="submit" name="submit" value="Submit Video" /></p>               <input type="hidden" name="submitted" value="TRUE" />
            </form>';
    }

}

Also noticed that you were missing the open curly bracket ({), and double quotes around the value of $video in the HTML.