Notice: Undefined index: username in C:\Users\User\l\htdocs\register.php on line 12
Notice: Undefined index: password in C:\Users\User\l\htdocs\register.php on line 13
<html>
<body>
<?php
$connect=mysql_connect("localhost","root","");
$db_selected = mysql_select_db("users", $connect);
if(isset($_POST['register'])){
$username = $_POST['username'];
$password = $_POST['password'];
if(!$username || !$password){
echo "One of the fields are empty";
}else{
$find_multiple=" SELECT username FROM resgistration WHERE Username='$username' ";
$run_multiple = mysql_query($find_multiple) or die (mysql_error());
$num_multiple= mysql_num_rows($run_multiple);
if($num_multiple < 1){
$password= md5($password);
mysql_query( "INSERT INTO `resgistration` (`username`, `password`) VALUES ('".$username."', '".$password."')" ) or die(mysql_error());
echo "You have succesfully registered!";
}else{
echo "That username has already beed used" ;
}
} # endelse: empty password or username
} # endif: registered
?>
<head>
<h1>Register</h1>
<form action='' method='post'>
Username: <input type='text' name='username'/></br>
password: <input type='password' name='password'/></br>
<input type='submit' value='Register'name='register'/>
</form>
</body>
</html>