title){ printf("

Article not found

I am sorry, but I couldn't find an article with this ID.

"); return; } // Begin the article printf("
"); // Display the blogpost name printf("

%s

", $this->title); // Display the blog metadata printf("
"); // Display tags for($i = 0; $i < count($this->tags); $i++) { $tag = $this->tags[$i]; printf(" %s ", $tag["color"], $tag["name"]); } // Display publish date and end metadata div printf("Published on: %s
", date("Y-m-d", strtotime($this->date_posted))); // Display hrule, article content and end the article printf("
%s
", $this->content); } /** * Constructor for the blogpost. * $blogpost_id GUID of the blogpost in the database. * $title Title of the blogpost. * $content Content of the blogpost article. * $date_posted Timestamp at publishing of article. * $tags Array of the tags this article has. */ public function __construct($blogpost_id, $title, $content, $date_posted, $tags){ $this->blogpost_id = $blogpost_id; $this->title = $title; $this->content = $content; $this->date_posted = $date_posted; $this->tags = $tags; } } /** * Try to load info about the blog with guid in GET and set global * variables accordingly. */ function get_blog_info($conn, $blogId){ // Check DB connection if($conn == null){ printf("

Failed DB connection, cannot proceed!

If you see this error in production, please shoot me an email with helpful details.
"); include_once($COMMONS."/footer.php"); die(); } // Prepare and bind statement for gathering blogpost info $stmt = $conn->prepare("SELECT title, content, date_posted FROM blogposts WHERE blogpost_id = :blogpost_id;"); $stmt->bindParam(":blogpost_id", $blogId); // Execute the statement $stmt->execute(); // Fetch the blogpost $result = $stmt->fetch(PDO::FETCH_ASSOC); // If no post with given guid was found, // there is no information to gather, return. if(!$result){ return null; } // Prepare new statement for selecting the tags for a given blogpost $stmt = $conn->prepare("SELECT name, color FROM blogpost_tags INNER JOIN blogpost_has_tag ON blogpost_tags.tag_id = blogpost_has_tag.tag_id WHERE blogpost_id = :blogpost_id;"); // Bind and execute the tag select $stmt->bindParam(":blogpost_id", $blogId); $stmt->execute(); // Fetch the tags $tags_arr = $stmt->fetchall(PDO::FETCH_ASSOC); // Set the variables $blogTitle = $result["title"]; $blogContent = $result["content"]; $datePosted = $result["date_posted"]; $tags = $tags_arr; return new Blogpost($blogId, $blogTitle, $blogContent, $datePosted, $tags); } /** * Display all the comments responding to a given article. */ function display_comments($conn, $blogId){ // Check DB connection if($conn == null){ printf("

Failed to load comments due to database connection error!

If you see this error in production, please shoot me an email with helpful details.
"); return; } // Prepare statement for selecting all coments replying to a given article. $stmt = $conn->prepare("SELECT;"); // Bind and execute the tag select $stmt->bindParam(":blogpost_id", $blogId); $stmt->execute(); // Fetch the tags $tags_arr = $stmt->fetchall(PDO::FETCH_ASSOC); } // Get the blog id. $blogId = sanitize_input($_GET["guid"]); $blogPost = null; // Try to get info about blog if($blogId) { $blogPost = get_blog_info($conn, $blogId); } // Display the header with title being the blog name, or not found message. display_header($blogPost ? $blogPost->title : "Article not found"); // Display the blog $blogPost->display_article(); include_once($COMMONS."/footer.php"); ?>