Forum-Add on For Usersystem
Forum add-on tutorial. Also an avatar editor. awesome stuff. I'll explain everything at the end.
Our mysql database queries. without these the code doesn't work.
Code
-- --------------------------------------------------------
CREATE TABLE `forum_category` (
`id` int(11) NOT NULL auto_increment,
`name` varchar(225) NOT NULL default '',
PRIMARY KEY (`id`)
) ENGINE=MyISAM;
-- --------------------------------------------------------
CREATE TABLE `forum_posts` (
`id` int(10) NOT NULL auto_increment,
`message` varchar(225) NOT NULL default '',
`poster` varchar(225) NOT NULL default '',
`thr_id` int(10) NOT NULL default '0',
PRIMARY KEY (`id`)
) ENGINE=MyISAM;
-- --------------------------------------------------------
CREATE TABLE `forum_thread` (
`id` int(11) NOT NULL auto_increment,
`title` varchar(225) NOT NULL default '',
`message` varchar(225) NOT NULL default '',
`poster` varchar(225) NOT NULL default '',
`top_id` int(10) NOT NULL default '0',
`thr_id` int(10) NOT NULL default '0',
`sticky` varchar(225) NOT NULL default 'No',
`locked` varchar(225) NOT NULL default 'No',
PRIMARY KEY (`id`)
) ENGINE=MyISAM;
-- --------------------------------------------------------
CREATE TABLE `forum_topic` (
`id` int(11) NOT NULL auto_increment,
`name` varchar(225) NOT NULL default '',
`description` varchar(225) NOT NULL default '',
`cat_id` int(10) NOT NULL default '0',
PRIMARY KEY (`id`)
) ENGINE=MyISAM;
-- --------------------------------------------------------
ALTER TABLE `members` ADD `avatar` VARCHAR( 225 ) NOT NULL ;
First page save as
forum_admin.php
PHP Code
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<?php
session_start();
include "config.php";
if($logged[username] && $logged[userlevel] == 6)
{
switch($_GET[page])
{
default:
echo ("Admin Panel Choose Feature.<br>
<a href='?page=addcategory'>Add Category</a>
<br>
<a href='?page=deletecategory'>Delete Category</a>
<br>
<a href='?page=addtopic'>Add Topic</a>
<br>
<a href='?page=deletetopic'>Delete Topic</a>
");
break;
case 'addcategory':
echo ("
<form method='POST' action='?page=insertcategory'>
<table width='100%'>
<tr>
<td align='right' width='25%'>New Category Name</td>
<td align='left'>
<input size='25' name='category'></td>
</tr>
<tr>
<td align='center'></td>
<td align='left'>
<input type='submit' name='submit' value='Update'></td>
</tr>
</table>
</form>
");
break;
case 'insertcategory':
$category = strip_tags(htmlspecialchars($_POST[category]));
$insert = mysql_query("INSERT INTO `forum_category` (`name`) VALUES ('$category')");
echo ("New Category Created. <br><a href='forum_admin.php'>Go back.</a>");
break;
case 'deletecategory':
echo ("
<form method='POST' action='?page=removecategory'>
<table width='100%'>
<tr>
<td align='right' width='25%'>Delete Category</td>
<td align='left'>
<select name='category'>
");
$fetch = mysql_query("SELECT * FROM `forum_category`"); //fetches all the forum categories from the database and displays them
while ($category = mysql_fetch_array($fetch))
{
echo ("<option value='$category[name]'>$category[name]</option>");
}
echo ("
</select>
</td>
</tr>
<tr>
<td align='center'></td>
<td align='left'>
<input type='submit' name='submit' value='Update'></td>
</tr>
</table>
</form>
");
break;
case 'removecategory':
$category = strip_tags(htmlspecialchars($_POST[category]));
$insert = mysql_query("DELETE FROM `forum_category` WHERE name = '$category'");
echo ("Category Deleted.<br><a href='forum_admin.php'>Go back.</a>");
break;
case 'addtopic':
echo ("
<form method='POST' action='?page=inserttopic'>
<table width='100%'>
<tr>
<td align='right' width='25%'>New Topic Name</td>
<td align='left'>
<input size='25' name='topic'></td>
</tr>
<tr>
<td align='right' width='25%'>Description</td>
<td align='left'>
<input size='25' name='description'></td>
</tr>
<tr>
<td align='right' width='25%'>Under Category</td>
<td align='left'>
<select name='cid'>
");
$fetch = mysql_query("SELECT * FROM `forum_category`");
while ($category = mysql_fetch_array($fetch))
{
echo ("<option value='$category[id]'>$category[name]</option>");
}
echo ("
</select>
</td>
</tr>
<tr>
<td align='center'></td>
<td align='left'>
<input type='submit' name='submit' value='Update'></td>
</tr>
</table>
</form>
");
break;
case 'inserttopic':
$description = strip_tags(htmlspecialchars($_POST[description]));
$topic = strip_tags(htmlspecialchars($_POST[topic]));
$cid = (int) htmlspecialchars($_POST[cid]);
$insert = mysql_query("INSERT INTO `forum_topic` (`name`, `cat_id`, `description`) VALUES ('$topic', '$cid', '$description')");
echo ("New Category Created. Redirecting you...<meta http-equiv='refresh' content='2;url=forum_admin.php'>");
break;
case 'deletetopic':
echo ("
<form method='POST' action='?page=removetopic'>
<table width='100%'>
<tr>
<td align='right' width='25%'>Delete Topic</td>
<td align='left'>
<select name='topic'>
");
$fetch = mysql_query("SELECT * FROM `forum_topic`");
while ($topic = mysql_fetch_array($fetch))
{
echo ("<option value='$topic[name]'>$topic[name]</option>");
}
echo ("
</select>
</td>
</tr>
<tr>
<td align='center'></td>
<td align='left'>
<input type='submit' name='submit' value='Update'></td>
</tr>
</table>
</form>
");
break;
case 'removetopic':
$topic = htmlspecialchars(strip_tags($_POST[topic]));
$insert = mysql_query("DELETE FROM `forum_topic` WHERE name = '$topic'");
echo ("Category Deleted. Redirecting you...<meta http-equiv='refresh' content='2;url=forum_admin.php'>");
break;
}
}
?>
Second page as
forum_mod.php
PHP Code
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<?php
session_start();
include "config.php";
echo ("<link rel='stylesheet' href='style.css'>");
if($logged[username] && $logged[userlevel] == 4 ||$logged[userlevel] == 6)
{
switch($_GET[page])
{
default:
echo ("Can't access this file directly.");
break;
case 'sticky':
$id = (int) htmlspecialchars($_GET[id]);
$fetch = mysql_query("SELECT * FROM `forum_thread` WHERE `id` = '$id'");
$thread = mysql_fetch_array($fetch);
if ($thread[sticky] == Yes)
{
echo ("This has already been sticked. <br><a href='javascript: history.go(-1)'>Go back.</a>");
}
else
{
$update = mysql_query("UPDATE `forum_thread` SET `sticky` = 'Yes' WHERE `id` = '$id'");
echo ("Thread has been stickied. <br><a href='javascript: history.go(-1)'>Go back.</a>");
}
break;
case 'lock':
$id = (int) htmlspecialchars($_GET[id]);
$fetch = mysql_query("SELECT * FROM `forum_thread` WHERE `id` = '$id'");
$thread = mysql_fetch_array($fetch);
if ($thread[locked] == Yes)
{
echo ("This has already been locked.<br><a href='javascript: history.go(-1)'>Go back.</a>");
}
else
{
$update = mysql_query("UPDATE `forum_thread` SET `locked` = 'Yes' WHERE `id` = '$id'");
echo ("Thread has been locked.<br><a href='javascript: history.go(-1)'>Go back.</a>");
}
break;
case 'delete':
$id = (int) htmlspecialchars($_GET[id]);
$fetch = mysql_query("DELETE FROM `forum_posts` WHERE `id` = '$id'");
echo ("Post has been deleted.<br><a href='javascript: history.go(-1)'>Go back.</a>");
break;
}
}
?>
Third page as
forum.php
PHP Code
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<?php
session_start();
include ("config.php");
include ("bbcode.php");
echo ("<link rel='stylesheet' href='style.css'>");
if($logged[username])
{
switch($_GET[page])
{
default:
echo ("<table width='100%' cellpadding='0'>");
$fetch1 = mysql_query("SELECT * FROM `forum_category`");
while ($category = mysql_fetch_array($fetch1))
{
echo ("<tr>
<td id='mains'><b>$category[name]<b><br></td>
</tr>
");
$fetch2 = mysql_query("SELECT * FROM `forum_topic` WHERE `cat_id` = '$category[id]'");
while ($topic = mysql_fetch_array($fetch2))
{
echo ("<tr>
<td id='fields'><a href='?page=forum&id=$topic[id]'>$topic[name]</a><br><i>$topic[description]</i></td>
</tr>
");
}
}
echo ("</table>");
$rows = mysql_num_rows($fetch1);
if ($rows == 0)
{
echo ("<center><b>Forum is Empty<b></center>");
}
break;
case 'forum':
echo ("<table width='100%' cellpadding='0'>");
$fetch1 = mysql_query("SELECT * FROM `forum_topic` WHERE `id` = '$_GET[id]'");
$topic = mysql_fetch_array($fetch1);
echo ("<tr><td id='mains'><b>$topic[name]</b> - <a href='?page=newthread&id=$_GET[id]'>New Thread</a></td><td id='mains'><b>Thread starter</b></td></tr>");
$fetch2 = mysql_query("SELECT * FROM `forum_thread` WHERE `thr_id` = '$_GET[id]' ORDER BY `sticky` DESC");
while ($thread = mysql_fetch_array($fetch2))
{
$threadtitle = "$thread[title]";
$bbctt1 = BBCODE($threadtitle);
if($thread[sticky] == Yes)
{
echo ("<tr><td id='fields'><a href='?page=forumdisplay&id=$thread[id]'><b>Sticky:</b> $bbctt1</a></td><td id='fields'>$thread[poster]</td></tr>");
}
else
{
echo ("<tr><td id='fields'><a href='?page=forumdisplay&id=$thread[id]'>$bbctt1</a></td><td id='fields'>$thread[poster]</td></tr>");
}
}
echo ("</table>");
break;
case 'forumdisplay':
echo ("<table width='100%' cellpadding='0'>");
$fetch1 = mysql_query("SELECT * FROM `forum_thread` WHERE `id` = '$_GET[id]'");
$thread = mysql_fetch_array($fetch1);
$fetch3 = mysql_query("SELECT * FROM `members` WHERE `username` = '$thread[poster]'");
$threadavatar = mysql_fetch_array($fetch3);
$threadtitle = "$thread[title]";
$bbctt2 = BBCODE($threadtitle);
$threadmessage = "$thread[message]";
$bbctm = BBCODE($threadmessage);
echo ("<tr>
<td id='mains'> </td>");
if($thread[sticky] == Yes)
{
echo ("<td id='mains'><b>Sticky:</b> $bbctt2</td></tr>");
}
else
{
echo ("<td id='mains'><b>$bbctt2</b></td></tr>");
}
echo ("<tr>
<td id='mains' align='center' width='120'><a href=javascript:void(window.open('members.php?user=$thread[poster]','client','status=1,width=400,height=250,top=60,left=60'))>$thread[poster]</a><br>
<img src='$threadavatar[avatar]'>
");
if ($logged[userlevel] == '4' || $logged[userlevel] == '6')
{
echo ("<br><a href='forum_mod.php?page=lock&id=$thread[id]'>Lock</a> - <a href='?page=editthread&id=$thread[id]'>Edit</a> - <a href='forum_mod.php?page=sticky&id=$thread[id]'>Sticky</a>");
}
if ($thread[poster] == $logged[username])
{
echo ("<br><a href='?page=editthread&id=$thread[id]'>Edit Post</a>");
}
echo ("
</td><td id='mains' align='left' valign='top'>$bbctm</td></tr>");
$fetch2 = mysql_query("SELECT * FROM `forum_posts` WHERE `thr_id` = '$_GET[id]'");
while ($posts = mysql_fetch_array($fetch2))
{
$postsmessage = "$posts[message]";
$bbcpm = BBCODE($postsmessage);
$fetch4 = mysql_query("SELECT * FROM `members` WHERE `username` = '$posts[poster]'");
$postsavatar = mysql_fetch_array($fetch4);
echo ("<tr>
<td id='fields' align='center'>$posts[poster]
<br>
<img src='$postsavatar[avatar]'>
");
if ($logged[userlevel] == '4' || $logged[userlevel] == '6')
{
echo ("<br><a href='forum_mod.php?page=delete&id=$posts[id]'>Delete</a> - <a href='?page=editpost&id=$posts[id]'>Edit</a>");
}
if ($logged[username] == $posts[poster])
{
echo ("<br><a href='?page=editpost&id=$posts[id]'>Edit Post</a>");
}
echo ("
</td>
<td id='fields' align='left' valign='top'>$bbcpm</td>
</tr>");
}
if ($thread[locked] == 'Yes')
{
echo ("<tr><td id='fields'> </td><td id='fields' valign='top'><b>This Thread is locked.</b></td></tr>");
}
else
{
echo ("
<tr>
<td id='fields'><center>Quick Reply</center></td>
<form method='POST' action='?page=addreply'>
<td id='fields'><textarea name='message' rows='8' cols='30'></textarea><br>
<input type='submit' name='submit' value='Post'>
<input type='hidden' name='id' value='$_GET[id]'></td>
</tr>
</form>
");
}
break;
case 'addreply':
$id = htmlspecialchars($_POST[id]);
$message = htmlspecialchars($_POST[message]);
$insert = mysql_query("INSERT INTO `forum_posts` (`message`, `poster`, `thr_id`) VALUES ('$message', '$logged[username]', '$id')");
echo ("Thanks for your reply. <br><a href='javascript: history.go(-1)'>Go back.</a>");
break;
case 'newthread':
echo ("<form method='POST' action='?page=addthread'>
<table width='100%'>
<tr>
<td>Title</td>
<td><input type='text' name='title'></td>
</tr>
<tr>
<td>Message</td>
<td><textarea name='message' rows='10' cols='40'></textarea></td>
</tr>
<tr>
<td></td>
<td><input type='submit' name='submit' value='Post'>
<input type='hidden' name='id' value='$_GET[id]'></td>
</tr>
</table>
</form>
");
break;
case 'addthread':
$id = htmlspecialchars($_POST[id]);
$query = mysql_query("SELECT * FROM `forum_thread` WHERE `id` = '$id'");
$array = mysql_fetch_array($query);
if ($array[locked] == Yes)
{
echo ("You can't post that in here.");
}
else
{
$title = htmlspecialchars($_POST[title]);
$message = htmlspecialchars($_POST[message]);
$insert = mysql_query("INSERT INTO `forum_thread` (`title`, `message`, `poster`, `thr_id`) VALUES ('$title', '$message', '$logged[username]', '$id')");
echo ("Your thread has been added.<br><a href='javascript: history.go(-2)'>Go back.</a>");
}
break;
case 'editthread':
$fetch = mysql_query("SELECT * FROM `forum_thread` WHERE `id` = '$_GET[id]'");
$thread = mysql_fetch_array($fetch);
if ($logged[username] == $thread[poster] || $logged[userlevel] == 6)
{
echo ("
<form method='POST' action='?page=updatethread'>
<table width='100%'>
<tr>
<td>Title</td>
<td><input type='text' name='title' value='$thread[title]'></td>
</tr>
<tr>
<td>Message</td>
<td><textarea name='message' rows='10' cols='40'>$thread[message]</textarea></td>
</tr>
<tr>
<td></td>
<td><input type='submit' name='submit' value='Post'>
<input type='hidden' name='id' value='$_GET[id]'></td>
</tr>
</table>
</form>
");
}
else
{
echo ("You can't edit this thread.");
}
break;
case 'updatethread':
$id = htmlspecialchars($_POST[id]);
$query = mysql_query("SELECT * FROM `forum_thread` WHERE `id` = '$id'");
$array = mysql_fetch_array($query);
if ($array[poster] == $logged[username] || $logged[userlevel] == 6)
{
$title = htmlspecialchars($_POST[title]);
$message = htmlspecialchars($_POST[message]);
$query = mysql_query("UPDATE `forum_thread` SET `title` = '$title', `message` = '$message' WHERE `id` = '$id'");
echo ("Thread has been updated.<br><a href='javascript: history.go(-2)'>Go back.</a>");
}
else
{
echo ("You can't edit this thread.");
}
break;
case 'editpost':
$fetch = mysql_query("SELECT * FROM `forum_posts` WHERE `id` = '$_GET[id]'");
$post = mysql_fetch_array($fetch);
if ($logged[username] == $post[poster] || $logged[userlevel] == 6)
{
echo ("
<form method='POST' action='?page=updatepost'>
<table width='100%'>
<tr>
<td>Message</td>
<td><textarea name='message' rows='10' cols='40'>$post[message]</textarea></td>
</tr>
<tr>
<td></td>
<td><input type='submit' name='submit' value='Post'>
<input type='hidden' name='id' value='$_GET[id]'>
</td>
</tr>
</table>
</form>
");
}
else
{
echo ("You can't edit this post.");
}
break;
case 'updatepost':
$id = htmlspecialchars($_POST[id]);
$query = mysql_query("SELECT * FROM `forum_thread` WHERE `id` = '$id'");
$array = mysql_fetch_array($query);
if ($array[poster] == $logged[username] || $logged[userlevel] == 6)
{
$message = htmlspecialchars($_POST[message]);
$update = mysql_query("UPDATE `forum_posts` SET `message` = '$message' WHERE `id` = '$id'");
echo ("Thread updated.<br><a href='javascript: history.go(-2)'>Go back.</a>");
}
else
{
echo ("You can't edit this thread.");
}
break;
}
}
?>
Fourth page as
bbcode.php
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<?
function BBCODE($content){ //define the function of bbcode
$content = nl2br($content); //replaces returns with br's
$match = array(
'#\[b\](.*?)\[\/b\]#se',
'#\[i\](.*?)\[\/i\]#se',
'#\[u\](.*?)\[\/u\]#se',
'#\[url=(.*?)\](.*?)\[\/url\]#se',
'#\[url\](.*?)\[\/url\]#se',
'#\[img\](.*?)\[\/img\]#se',
'#\[code\](.*?)\[\/code\]#se',
'#\[php\](.*?)\[\/php\]#se',
'#\[print\](.*?)\[\/print\]#se'
); //codes used in posts
$replace = array(
"'<b>\\1</b>'",
"'<i>\\1</i>'",
"'<u>\\1</u>'",
"'<a href=\"\\1\" target=\"_BLANK\">\\2</a>'",
"'<a href=\"\\1\" target=\"_BLANK\">\\1</a>'",
"'<img border=\"0\" src=\"\\1\">'",
"'<u><b>Code:</b></u>
<div style=\"border: 1px dotted #000000; background-color: #CCCCCC; overflow: auto;\">
'.highlight_string(stripslashes(str_replace('', '', '$1')), true).'</div>'",
"'<u><b>PHP Code:</b></u>
<div style=\"border: 1px dotted #000000; background-color: #CCCCCC; overflow: auto;\"> '.highlight_string(stripslashes(str_replace('', '', '$1')), true).'</div>'",
"'<u><b>Print Out:</b></u>
<div style=\"border: 1px dotted #000000; background-color: #CCCCCC; overflow: auto;\">
'.highlight_string(stripslashes(str_replace('', '', '$1')), true).'</div>'"
); //replacements
return preg_replace($match, $replace, $content); //match, and replace
} //end the function
?>
Fifth page as avatar.php
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<?php
include "config.php";
if($logged[username])
{
switch($_GET[page])
{
default:
echo ("
<form action='?page=upload' enctype='multipart/form-data' method='POST'>
<table border='1'>
<tr>
<td>Avatar</font></td>
<td><input type='file' size='7' name='avatar' id='avatar'></td>
</tr>
<tr>
<td colspan='2' align='center'><input type='submit' name='submit' value='Upload'></td>
</tr>
</table>
</form>
");
break;
case 'upload':
$filename = $_FILES["avatar"]["name"];
$tmp_name = $_FILES["avatar"]["tmp_name"];
$avatar = "images/$filename";
$username = $logged[username];
if (move_uploaded_file($tmp_name, "images/".$filename))
{
$query = mysql_query("UPDATE `members` SET `avatar` = '$avatar' WHERE `username` = '$logged[username]'");
echo ("File uploaded $avatar, $username");
}
else
{
die("Uploading file Failed.");
}
break;
}
}
?>
Last page save as
style.css
PHP Code
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#mains
{
background-color: #C0C0C0;
font-family: Verdana;
font-size: 8pt;
color: #000000;
border-color: #000000;
border-style: solid;
border-width: thin;
padding: 0px;
}
#fields
{
background-color: #FFFFFF;
font-family: Verdana;
font-size: 8pt;
color: #000000;
border-color: #000000;
border-style: solid;
border-width: thin;
padding: 0px;
}
body
{
background-color: #FFFFFF;
font-family: Verdana;
font-size: 8pt;
color: #000000;
padding: 0px;
}
td
{
background-color: #FFFFFF;
font-family: Verdana;
font-size: 8pt;
color: #000000;
padding: 0px;
}
a:link
{
color: #000000;
text-decoration: none;
font-family: Verdana;
font-size: 8pt;
}
a:visited
{
text-decoration: none;
color: #000000;
font-family: Verdana;
font-size: 8pt;
}
a:hover
{
text-decoration: underline;
color: #000000;
font-family: Verdana;
font-size: 8pt;
}
a:active
{
text-decoration: none;
color: #000000;
font-family: Verdana;
font-size: 8pt;
}
Okay I'll start defining. It's a big tutorial so bear with me I'll generalise to make it smaller.
Code
<?php
session_start();
include "config.php";
This code always at the top of our page turns on PHP, starts the session and then includes our database connection file.
Code
switch($_GET[page])
{
Used in all the pages it makes it so the url can be ?page= something.
This comes right after the switch code, anything in between wil be displayed if the url is incorrect eg. ?page=formu would show the default page.
For example if inbetween the two '' said fries it would allow the url to go to ?page=fries and everything in between case '': and break; would be displayed.
Code
<form method='POST' action='?page='>
</form>
In all pages of the coding forms are used alot. All of them will have at least this in common. action tells us where to post it to. like an email except its a page url. Any values inbetween these two tags will be sent.
Code
if ($logged[username])
{
This makes sure the user is logged in.
Code
if ($logged[username] && $logged[userlevel] == 4 || $logged[userlevel] == 6)
{
This makes sure the user is logged in and makes sure the user is either level 4 or level 6. seen alot throughout the codes.
Our CSS coding is used so we dont have to put the html coding all throughout the code.
in the '' would be defined with one of the CSS headers and as stated before saves us writing it in all the time.
Thats it for the generalised coding explanation and the tutorial. Hope you like it.
Edit: New tutorial as old one had many errors.