**
plz help me to implement this code in php class
**
index.php
<?php
$connect=mysql_connect("localhost","root","");
mysql_select_db("crud",$connect);
$username;
$password;
if(isset($_POST["insert"])){
if($_POST["insert"]=="yes"){
$username=$_POST["username"];
$password=$_POST["password"];
$query="insert into user(username, password) values('$username', '$password')";
if(mysql_query($query))
echo "<center>Record Inserted!</center><br>";
}
}
if(isset($_POST["update"])){
if($_POST["update"]=="yes"){
$username=$_POST["username"];
$password=$_POST["password"];
$query="update user set username='$username' , password='$password' where id=".$_POST['id'];
if(mysql_query($query))
echo "<center>Record Updated</center><br>";
}
}
if(isset($_GET['operation'])){
if($_GET['operation']=="delete"){
$query="delete from user where id=".$_GET['id'];
if(mysql_query($query))
echo "<center>Record Deleted!</center><br>";
}
}
?>
<html>
<body>
<form method="post" action="index.php">
<table align="center" border="0">
<tr>
<td>username:</td>
<td><input type="text" name="username" /></td>
</tr>
<tr>
<td>password:</td>
<td><input type="password" name="password" /></td>
</tr>
<tr>
<td> </td>
<td align="right">
<input type="hidden" name="insert" value="yes" />
<input type="submit" value="Insert Record"/>
</td>
</tr>
</table>
</form>
<?php
if(isset($_GET['operation'])){
if($_GET['operation']=="edit"){
?>
<form method="post" action="index.php">
<table align="center" border="0">
<tr>
<td>username:</td>
<td><input type="text" name="username" value="<?php echo $_GET['username']; ?>" /></td>
</tr>
<tr>
<td>password:</td>
<td><input type="text" name="password" value="<?php echo $_GET['password']; ?>"/></td>
</tr>
<tr>
<td> </td>
<td align="right">
<input type="hidden" name="id" value="<?php echo $_GET['id'] ?>" />
<input type="hidden" name="update" value="yes" />
<input type="submit" value="update Record"/>
</td>
</tr>
</table>
</form>
<?php
}}
?>
<?php
$query="select * from user";
$result=mysql_query($query);
if(mysql_num_rows($result)>0){
echo "<table align='center' border='1'>";
echo "<tr>";
echo "<th>Id</th>";
echo "<th>Username</th>";
echo "<th>Password</th>";
echo "</tr>";
while($row=mysql_fetch_array($result)){
echo "<tr>";
echo "<td>".$row['id']."</td>";
echo "<td>".$row['username']."</td>";
echo "<td>".$row['password']."</td>";
echo "<td><a href='index.php?operation=edit&id=".$row['id']."&username=".$row['username']."&password=".$row['password']."'>edit</a></td>";
echo "<td><a href='index.php?operation=delete&id=".$row['id']."'>delete</a></td>";
echo "</tr>";
}
echo "</table>";
}
else{
echo "<center>No Records Found!</center>";
}
?>
</body>
</html>