how i login in php through oracle database. please experts help me in login form php through oracle perfect code
<?php
$username = $_POST["username"];
$password = $_POST["password"];
$con = oci_connect("user","pswrd","db");
if(! $con)
{
die('Connection Failed'.oci_error());
}
$query = "SELECT username, password FROM users
WHERE username=$username";
$stmt = oci_parse($conn, $query);
$row = oci_fetch_array($stmt, OCI_NUM);;
if($row["username"]==$username && $row["password"]==$password)
echo"You are a validated user.";
else
echo"Sorry, your credentials are not valid, Please try again.";
?>
and my html code is here...
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>form</title>
</head>
<body>
<form method="post" action="login.php" >
<table border="1" >
<tr>
<td><label for="username">username</label></td>
<td><input type="text"
name="username" id="username"></td>
</tr>
<tr>
<td><label for="password">Password</label></td>
<td><input name="password"
type="password" id="password"></input></td>
</tr>
<tr>
<td><input type="submit" value="Submit"/>
<td><input type="reset" value="Reset"/>
</tr>
</table>
</form>
</body>
</html>