Building a Quick and Easy Tag Board - Our Tag Board Script (
Page 3 of 11 )
Our tag board is made up of three functions, four defined constants, a switch statement and a nifty little comparison operator to help with those of you using error-reporting E_ALL.
So let's have a look at the complete version of our script, and then we will go through and look at the script with greater detail. Our Tag Board Script can be found below:
<?
define('HOST', 'localhost');
define('USER', 'mysql_username');
define('PASS', 'mysql_pass);
define('DB', 'mysql_db');
function doTags()
{
$conx = mysql_connect(HOST, USER, PASS) or die("Unable to connect to MySQL Server");
mysql_select_db(DB) or die("Unable to select Database");
$stSql = "SELECT tag_name, tag_url, tag_entry, tag_date FROM tagboard ORDER BY tag_date DESC";
$arrResult = @mysql_query($stSql);
if (!$arrResult) { echo "Query Failed - Unable to Retrieve tags - ".mysql_error()." – Action Aborted"; exit(); }
if (mysql_num_rows($arrResult) >= 1)
{
while ($arrRow = mysql_fetch_assoc($arrResult))
{
?>
<table align="center" width="100%" bgcolor="#FFFFFF">
<tr>
<td><a href="<? echo stripslashes($arrRow['tag_url']); ?>"><? echo stripslashes($arrRow['tag_name']); ?></a></td>
</tr>
<tr>
<td><? echo nl2br(stripslashes($arrRow['tag_entry'])); ?></td>
</tr>
<tr>
<td><span style="font-family: verdana,arial,helvetica,sans-serif; font-size: 9px; color: #666666"> <? echo date("F j, Y, g:i a", $arrRow['tag_date']); ?></span></td>
</tr>
</table>
<?
}
} else {
?>
<p style="font-family: verdana,arial,helvetica,sans-serif; font-size: 11px; background-color: #FFFFFF">No entries to display</p>
<?
}
}
function doBoard()
{
?>
<html>
<head>
<title>DevShift.com Tag Board</title>
<style>
body {
font-family: verdana,arial,helvetica,sans-serif; font-size: 11px; background-color: #FFFFFF;
}
td {
font-family: verdana,arial,helvetica,sans-serif; font-size: 11px; color: #666666;
}
.inputform {
BORDER-RIGHT: #efefef 1px solid; BORDER-TOP: #000000 1px solid; FONT: 11px Verdana; BORDER-LEFT: #000000 1px solid; BORDER-BOTTOM: #efefef 1px solid; BACKGROUND-COLOR: #efefef
}
.inputformsub {
BORDER-RIGHT: 1px outset; PADDING-RIGHT: 2px; BORDER-TOP: 1px outset; PADDING-LEFT: 2px; PADDING-BOTTOM: 2px; FONT: 11px Verdana; BORDER-LEFT: 1px outset; PADDING-TOP: 2px; BORDER-BOTTOM: 1px outset; BACKGROUND-COLOR: #dedede
}
</style>
</head>
<body>
<form action="board.php?do=Insert" target="tag_box" method="POST">
<table width="150" height="250" bgcolor="#FFFFFF" style="border: 1px solid #000000">
<tr>
<td height="150"><IFRAME name="tag_box" height="150" width="150" src="board.php?do=Tags" frameborder="0"></IFRAME></td>
</tr>
<tr>
<td height="100" align="center">Name:<br><input type="text" name="__name" size="20" maxlength="55" class="inputform"><br>URL:<br><input type="text" name="__url" size="20" maxlength="255" value="http://" class="inputform"><br>Your Entry:<br><input type="text" name="__entry" size="20" maxlength="400" class="inputform"><br><input type="submit" value="Submit Entry" class="inputformsub"></td>
</tr>
</table>
</form>
</body>
</html>
<?
}
function doInsert($__name, $__entry, $__url)
{
$conx = mysql_connect(HOST, USER, PASS) or die("Unable to connect to MySQL Server");
mysql_select_db(DB) or die("Unable to select Database");
$__name = addslashes($__name);
$__url = addslashes($__url);
$__entry = addslashes($__entry);
if (empty($__name))
{
?>
<p style="font-family: verdana,arial,helvetica,sans-serif; font-size: 11px; background-color: #FFFFFF">Name Field Is Required</p>
<meta http-equiv="refresh" content="5;url='board.php?do=Tags'">
<?
} elseif (empty($__entry))
{
?>
<p style="font-family: verdana,arial,helvetica,sans-serif; font-size: 11px; background-color: #FFFFFF">Entry Field Is Required</p>
<meta http-equiv="refresh" content="5;url='board.php?do=Tags'">
<?
} else {
$stSql = "INSERT INTO tagboard(tagId, tag_name, tag_url, tag_entry, tag_date) values('', '$__name', '$__url', '$__entry', ".time().")";
$arrResult = @mysql_query($stSql);
if (!$arrResult) { echo "Query Failed - Unable to Retrieve tags - ".mysql_error()." – Action Aborted"; exit(); }
if (mysql_affected_rows() == 1)
{
?>
<meta http-equiv="refresh" content="3;url='board.php?do=Tags'">
<?
} else {
echo "Unable to Add Entry to Database";
?>
<meta http-equiv="refresh" content="5;url='board.php?do=Tags'">
<?
}
}
}
$do = (isset($_GET['do']) ? $_GET['do'] : FALSE);
switch ($do) {
case "Board":
doBoard();
break;
case "Tags":
doTags();
break;
case "Insert":
doInsert($_POST['__name'], $_POST['__entry'], $_POST['__url']);
break;
default:
doBoard();
}
?>
