Creating a simple PHP guestbook (1/2)

Creating simple PHP guestbook.

Overview

In this tutorial, we have to create 3 files.
1. guestbook.php
2. addguestbook.php
3. viewguestbook.php

Steps
1. Create table name "guestbook" in database "test".
2. Create file guestbook.php.
3. Create file addguestbook. php.
4. Create file viewguestbook.php

STEP1: Set up database

CREATE TABLE `guestbook` (
`id` int(4) NOT NULL auto_increment,
`name` varchar(65) NOT NULL default '',
`email` varchar(65) NOT NULL default '',
`comment` longtext NOT NULL,
`datetime` varchar(65) NOT NULL default '',
PRIMARY KEY (`id`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1 AUTO_INCREMENT=1 ;

If you don't know how to create database and table, read this tutorial

STEP2: Create file guestbook.php

############### Code

<table width="400" border="0" align="center" cellpadding="3" cellspacing="0">
<tr>
<td><strong>Test Sign Guestbook </strong></td>
</tr>
</table>
<table width="400" border="0" align="center" cellpadding="0" cellspacing="1" bgcolor="#CCCCCC">
<tr>
<form id="form1" name="form1" method="post" action="addguestbook.php">
<td>
<table width="400" border="0" cellpadding="3" cellspacing="1" bgcolor="#FFFFFF">
<tr>
<td width="117">Name</td>
<td width="14">:</td>
<td width="357"><input name="name" type="text" id="name" size="40" /></td>
</tr>
<tr>
<td>Email</td>
<td>:</td>
<td><input name="email" type="text" id="email" size="40" /></td>
</tr>
<tr>
<td valign="top">Comment</td>
<td valign="top">:</td>
<td><textarea name="comment" cols="40" rows="3" id="comment"></textarea></td>
</tr>
<tr>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td><input type="submit" name="Submit" value="Submit" /> <input type="reset" name="Submit2" value="Reset" /></td>
</tr>
</table>
</td>
</form>
</tr>
</table>
<table width="400" border="0" align="center" cellpadding="3" cellspacing="0">
<tr>
<td><strong><a href="viewguestbook.php">View Guestbook</a> </strong></td>
</tr>
</table>

STEP3: Create file addguestbook.php

############### Code

<?php
$host="localhost"; // Host name
$username=""; // Mysql username
$password=""; // Mysql password
$db_name="test"; // Database name
$tbl_name="guestbook"; // Table name

// Connect to server and select database.
mysql_connect("$host", "$username", "$password")or die("cannot connect server ");
mysql_select_db("$db_name")or die("cannot select DB");

$datetime=date("y-m-d h:i:s"); //date time
$sql="INSERT INTO $tbl_name(name, email, comment, datetime)VALUES('$name', '$email', '$comment', '$datetime')";
$result=mysql_query($sql);

//check if query successful 
if($result){
echo "Successful";
echo "<BR>";

// link to view guestbook page
echo "<a href='viewguestbook.php'>View guestbook</a>";
}

else {
echo "ERROR";
}

mysql_close();
?>