[SOLVED] Why am I getting a "Notice: Undefined variable"

[jamcoupe]

It say:

Notice: Undefined variable: articledata in /Applications/MAMP/htdocs/jstar/news.php on line 22

On the normal news.php page but not when I have news.php?article=1

 

Does anyone know how to solve it. Heres my code.

<?php
//gets information to display the article on its own page.
if(isset($_GET['article'])) {
	$query = "SELECT * FROM news WHERE id={$_GET['article']} ";
	$get_article = mysql_query($query, $connect);
	if(!$get_article) {
		die("Database Query Failed: ".mysql_error());
	}
		if ($articledata = mysql_fetch_array($get_article)) {
	} else {
		$articledata = NULL;
	}
}


?>
<?php include("includes/header.php"); ?>
<?php 
//****Line 22 below****//
if (!is_null($articledata)) {
?>
        <div class="news">
        <h3 class="news_title"><?php echo $articledata["title"] ?></h3>
        <p class="news_content"><?php echo $articledata["content"]; ?></p>
        <p class="news_bottom">[<?php echo $articledata["date"];?>]<br />by jamcoupe</p>
        </div>
        <a href="news.php">Back</a>
<?php
} else {
	$get_news = get_news();
	?>
	<h2>News</h2>
        <p><a href="addnews.php">Add News</a></p>
	<?php
	while ($articledata = mysql_fetch_array($get_news)) {
?>
	<div class="news">
	<h3 class="news_title"><a href="news.php?article=<?php echo $articledata['id']; ?>"> <?php echo htmlentities($articledata['title']); ?></a></h3>
	<p class="news_content"><?php echo strip_tags(nl2br($articledata['content']), "<br>"); ?></p>
	<p class="news_bottom">[<?php echo $articledata['date'];?>]<br />by jamcoupe<br /><a href="editnews.php?article=<?php echo $articledata['id']; ?>">[Edit]</a> <a href="deletenews.php?article=<?php echo $articledata['id']; ?>" onclick="return confirm('Are you sure you want to delete: <?php echo $articledata['title']; ?>?');">[Delete]</a></p>
	</div><br />	

<?php
}
}
?>

[taquitosensei]

put

$articledata=NULL; 

just before the query

you can also then remove the else

[jamcoupe]

Thanks