I have written some php and got this error:

Warning: mysql_fetch_assoc() expects parameter 1 to be resource, boolean given in C:\xampp\htdocs\LikeButton\article.php on line 7

Here Is The Code From article.php:

Line 2: function get_articles()
Line :3 {
Line 4: $articles = array ();
Line 5:
Line 6:$query = mysql_query("SELECT 'article_id', 'article_title', 'article_likes' FROM 'article'");
Line 7:while(($row = mysql_fetch_assoc($query)) !==false)
Line 8:{
Line 9:echo $row['article_title'], '<br />';
Line 10:}
Can Anyone Tell Me How To Fix This Or Atleast What This Error Means?

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