Blog (including comment) Invalid Post ID

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riskymilk
Posts: 5
Joined: Tue Apr 30, 2013 3:43 am

Blog (including comment) Invalid Post ID

Post by riskymilk »

I tried reading up on all previous posts about this and none of them have worked for me. I'm not sure if I'm correct on this but I need to be able to get to http://localhost/blog/blog_read.php?pid=1 when i run blog_read.php but i'm not. Any help will be greatly appreciated, thanks.

blog_read.php
<?php

include('core/init.inc.php');

if (isset($_GET['pid'], $_POST['user'], $_POST['body'])){
	if(add_comment($_GET['pid'], $_POST['user'], $_POST['body'])){
		header("Location: blog_read.php?pid={$_GET['pid']}");
	}
	else{
		header('Location: blog_list.php');
	}
	
	die();
}


?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">
	<head>
		<meta http-equiv="content-type" content="text/html; charset=utf-8" />
		<meta name="description" content="" />
		<meta name="keywords" content="" />
		<title>Consistent by FCT</title>
		<link href="http://fonts.googleapis.com/css?family=Bitter" rel="stylesheet" type="text/css" />
		<link rel="stylesheet" type="text/css" href="css/style.css" />
		<link href="style.css" rel="stylesheet" type="text/css" />
		<script type="text/javascript" src="jquery-1.7.1.min.js"></script>
		<script type="text/javascript" src="jquery.dropotron-1.0.js"></script>
	<script type="text/javascript">
			$(function() {
				$('#menu > ul').dropotron({
					alignment: 'center',
					mode: 'fade',
					offsetY: -13
				});
			});
		</script>
	</head>
	<body>
		<div id="wrapper">
			<div id="header">
				<div id="logo">
					<h1><a href="index_php.php">The OWNag3 Gamer Site</a></h1>
					<p class="slogan">Get your Swag on<a href="http://www.freecsstemplates.org"></a></p>
				</div>
			</div>
			<div id="menu">
				<ul>
					<li><a href="gameproducts.html">Game Products</a></li>
					<li><a href="events.html">events</a></li>
					<li><a href="videos.html">Videos</a></li>
					<li><a href="gameforum.html">Game Forum</a></li>
				  <li><a href="affiliates.html"></a></li>
				</ul>
			</div>
			<div id="page">
			  <div id="sidebar">
					<div class="box">
						<h3>Login</h3>
                        
                        <form method="post" action="checklogin.php">
                        Username:<input type="text" name="username" /><br />
                        Password:   <input type="password" name="password" /><br />
                        <input type="submit" value="Login" />
                        
                        </form>
                        
						<p> </p>
						<p> </p>
					    <h3>The Game blog</h3>
                            <p> Come share us all your top secrets to help pwn noobs on the battlefield. Show us your sick montage clips! </p>
					</div>
			  </div>
		  </div>
				<div id="content">
                <?php
				
				if (isset($_GET['pid']) === false || valid_pid($_GET['pid']) === false){
					echo mysql_error();
					echo 'Invalid Post ID';
				}
				else{
					$post = get_post($_GET['pid']);
					
				  ?>
                  <h2><?php echo $post['title']; ?></h2>
                  <h4>By <?php echo $post['user']; ?> on <?php echo $post['date']; ?> (<?php echo count($post['comments']); ?> comments)</h4>
                  
                  <hr  />
                  
                  <p><?php echo $post['body'];?></p>
                  
                  <hr  />
                  
                  <?php
				  
				  foreach ($post['comments'] as $comment){
					?>
                    <h4>By <?php echo $comment['user'];?> on <?php echo $comment['date']; ?></h4>
                    <p><?php echo $comment['body'];  ?></p>
                    <hr  />
                    <?php  
					  
				  }
				  
				  ?>
				  <form action="" method="post">
					<p>
					  <label for="user">Name</label>
					  <input type="text" name="user" id="user" />
				   </p>
				   <p>
					  <textarea name="body" rows="20" cols="60"></textarea>
				   </p>
				   <p>
					  <input type="submit" value="Add Comment" />
				   </p>
				   </form>
				   <?php
				}
				?>
				</div>
				<br class="clearfix" />
	</div>
		</div>
		<div id="footer">
			<p><a href="gameproducts.html">Game Products</a> | <a href="events.html">Events</a> | <a href="videos.html">Videos</a> | <a href="gameforum.html">Game Forums</a> | <a href="affiliates.html">Affiliates</a></p>
			<p> </p>
		</div>
	</body>
</html>
blog_list.php
<?php

include('core/init.inc.php');


?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<!--
Design by Free CSS Templates
http://www.freecsstemplates.org
Released for free under a Creative Commons Attribution 3.0 License

Name       : Consistent
Description: A two-column, fixed-width design with dark color scheme.
Version    : 1.0
Released   : 20120322
-->
<html xmlns="http://www.w3.org/1999/xhtml">
	<head>
		<meta http-equiv="content-type" content="text/html; charset=utf-8" />
		<meta name="description" content="" />
		<meta name="keywords" content="" />
		<title>Consistent by FCT</title>
		<link href="http://fonts.googleapis.com/css?family=Bitter" rel="stylesheet" type="text/css" />
		<link rel="stylesheet" type="text/css" href="css/style.css" />
		<link href="style.css" rel="stylesheet" type="text/css" />
		<script type="text/javascript" src="jquery-1.7.1.min.js"></script>
		<script type="text/javascript" src="jquery.dropotron-1.0.js"></script>
	<script type="text/javascript">
			$(function() {
				$('#menu > ul').dropotron({
					alignment: 'center',
					mode: 'fade',
					offsetY: -13
				});
			});
		</script>
	</head>
	<body>
		<div id="wrapper">
			<div id="header">
				<div id="logo">
					<h1><a href="index_php.php">The OWNag3 Gamer Site</a></h1>
					<p class="slogan">Get your Swag on<a href="http://www.freecsstemplates.org"></a></p>
				</div>
			</div>
			<div id="menu">
				<ul>
					<li><a href="gameproducts.html">Game Products</a></li>
					<li><a href="events.html">events</a></li>
					<li><a href="videos.html">Videos</a></li>
					<li><a href="gameforum.html">Game Forum</a></li>
				  <li><a href="affiliates.html"></a></li>
				</ul>
			</div>
			<div id="page">
			  <div id="sidebar">
					<div class="box">
						<h3>Login</h3>
                        
                        <form method="post" action="checklogin.php">
                        Username:<input type="text" name="username" /><br />
                        Password:   <input type="password" name="password" /><br />
                        <input type="submit" value="Login" />
                        
                        </form>
                        
						<p> </p>
						<p> </p>
					    <h3>The Game blog</h3>
                            <p> Come share us all your top secrets to help pwn noobs on the battlefield. Show us your sick montage clips! </p>
					</div>
			  </div>
		  </div>
				<div id="content">
                <?php
				
				$posts = get_posts();
				
				foreach ($posts as $post){
					?>
                    <h2><a href="blog_read.php?pid=<?php echo $post['id']; ?>"<?php echo $post['title']; ?></a></h2>
                    <h4>By <?php echo $post['user']; ?> on <?php echo $post['date']; ?></h4>
                    <h4>(<?php echo $post['total_comments']; ?> comments, last comment <?php echo $post['last_comment']; ?>)</h4>
                    
                    <hr />
                    
                    <p><?php echo $post['preview']; ?></p>
                    <?php	
					
				}
				?>
				  
					<br class="clearfix" />
				</div>
				<br class="clearfix" />
	</div>
		</div>
		<div id="footer">
			<p><a href="gameproducts.html">Game Products</a> | <a href="events.html">Events</a> | <a href="videos.html">Videos</a> | <a href="gameforum.html">Game Forums</a> | <a href="affiliates.html">Affiliates</a></p>
			<p> </p>
		</div>
	</body>
</html>
posts.inc
<?php

function valid_pid($pid){
	$pid = (int)$pid;
	
	$total = mysql_query("SELECT COUNT(`post_id`) FROM `posts` WHERE `post_id` = {$pid}");
	$total = mysql_result($total, 0);
	
	if ($total != 1){
		return false;
	}
	else{
		return true;
	}
}

function get_posts(){
	$sql = "SELECT 
				`posts`.`post_id` AS `id`,
				`posts`.`post_title` AS `title`,
				LEFT(`posts`.`post_body`, 512) AS `preview`,
				`posts`.`post_user` AS `user`,
				DATE_FORMAT(`posts`.`post_date`, '%d/%m/%Y  %H:%i:%s') AS `date`,
				`comments`.`total_comments`,
				DATE_FORMAT(`comments`.`last_comment`, '%d/%m/%Y  %H:%i:%s') AS `last_comment`
			FROM `posts`
			LEFT JOIN (
				SELECT
					`post_id`,
					COUNT(`comment_id`) AS `total_comments`,
					MAX(`comment_date`) AS `last_comment`
				FROM `comments`
				GROUP BY `post_id`
			) AS `comments`
			ON `posts`.`post_id` = `comments`.`post_id`
			ORDER BY `posts`.`post_date` DESC";
	
	$posts = mysql_query($sql);
	
	$rows = array();
	while(($row = mysql_fetch_assoc($posts)) !== false){
		$rows[] = array(
			'id'				=> $row['id'],
			'title'				=> $row['title'],
			'preview'			=> $row['preview'],
			'user'				=> $row['user'],
			'date'				=> $row['date'],
			'total_comments'	=>($row['total_comments'] === null) ? 0 : $row['total_comments'],
			'last_comment'		=>($row['last_comment'] ===null) ? 'never' : $row['last_comment']
			
		);	
	}
	
	return $rows;
}

function get_post($pid){
	$pid = (int)$pid;
	
	$sql = "SELECT
				`post_title` AS `title`,
				`post_body` AS `body`,
				`post_user` AS `user`,
				`post_date` AS `date`
				FROM `posts`
				WHERE `post_id` = {$pid}";
				
	$post = mysql_query($sql);
	$post = mysql_fetch_assoc($post);
	
	$post['comments'] = get_comments($pid);
	
	return $post;
	
}

function add_post($name, $title, $body){
	$name	= mysql_real_escape_string(htmlentities($name));
	$title	= mysql_real_escape_string(htmlentities($title));
	$body	= mysql_real_escape_string(nl2br(htmlentities($body)));
	
	mysql_query("INSERT INTO `posts` (`post_user`, `post_title`, `post_body`, `post_date`) VALUES ('{$name}', '{$title}', '{$body}', NOW())");
}
?>
comments.inc
<?php

function get_comments($pid){
	$pid = (int)$pid;
	
	$sql = "SELECT
				`comment_body` AS `body`,
				`comment_user` AS `user`,
				DATE_FORMAT(`comment_date`, '%d/%m/%Y %H:%i:%s') AS `date`
				FROM `comments`
				WHERE `post_id` = {$pid}";
	
	$comments = mysql_query($sql);
	
	$return = array();
	
	while (($row = mysql_fetch_assoc($comments)) !== false){
		$return[] = $row;
	}
	
	return $return;
}

function add_comment($pid, $user, $body){
	if (valid_pid($pid) === false){
		return false;	
	}
	
	$pid = (int)$pud;
	$user = mysql_real_escape_string(htmlentities($user));
	$body = mysql_real_escape_string(htmlentities($body));
	
	mysql_query("INSERT INTO `comments` (`post_id`, `comment_user`, `comment_body`, `comment_date`) VALUES ({$pid}, '{$user}', '{$body}', NOW())");
	
	return true;
}

?>
User avatar
Temor
Posts: 1186
Joined: Thu May 05, 2011 8:04 pm

Re: Blog (including comment) Invalid Post ID

Post by Temor »

I'm not sure I understand your question. What do you mean by not being able to go to that url? Does it redirect you somewhere else or is it just a blank page?
riskymilk
Posts: 5
Joined: Tue Apr 30, 2013 3:43 am

Re: Blog (including comment) Invalid Post ID

Post by riskymilk »

The main problem is I get an invalid Post ID when I run blog_read.php
User avatar
Temor
Posts: 1186
Joined: Thu May 05, 2011 8:04 pm

Re: Blog (including comment) Invalid Post ID

Post by Temor »

Well, the most obvious place to start would be to check if the post ID is valid. Do you have a post with the ID of 1 in the database?
And are you sure that your table names and whatnot are spelled correctly?
Post Reply