I just finished the blog tutorials. Apparently everything is working, but when I submit a post on the blog_post.php page, I get this error (even tho the post will be appeared on the blog_list page ).
Warning: Cannot modify header information - headers already sent by (output started at /home/*****/public_html/blog/func/inc/posts.inc.php:1) in /home/*****/public_html/blog/blog_post.php on line 7.
blog_post.php
[syntax=php]<?php
ini_set('display_errors',1);
error_reporting(E_ALL);
include 'func/config.php';
if (isset($_POST['user'], $_POST['title'], $_POST['body'])){
add_post($_POST['user'], $_POST['title'], $_POST['body']);
header('Location: blog_list.php');
die();
}
?>[/syntax]
posts.inc.php
[syntax=php]<?php
//checks if the given post id is in the table
function valid_pid($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;
}
}
//gets a summary of all blog posts
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`, '%m-%d-%Y %H:%i:%s') AS `date`,
`comments`.`total_comments`,
DATE_FORMAT(`comments`.`last_comment`, '%m-%d-%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) ? 'No comment so far (be the first to comment on this post)' : $row['last_comment']
);
}
return $rows;
}
//gets a single post from the table
function get_post($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 $post;
}
//adds a new blog entry
function add_post($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())");
}
?>[/syntax]
Appreciate your input
