Php register user and later authenticate user

[Amaina]

Dear friends

I am creating a php login/register form to register and authenticate users.My problem is that the form does not submit the data in the form to the database.Please see the code below:

<?Php
	session_start();
/****************/
//original Amaina......slowly coming of age//
	include 'dayta.php';
	
	//connect
	$link = mysql_connect($database_host, $database_user, $database_password);
	mysql_select_db($database_name,$link);
	//
if (isset($_POST['submit'])) { 
	//
	$username = $_POST["username"];
	$password = $_POST["password"];
	$password2 = $_POST["password2"];
	$passwordhash = md5($password);
	$encoded_username = urlencode($username);
	
	//ogopa sql injection...the thought of sql injection sends a brrrr down my spine
	$encoded_username= stripslashes($encoded_username);
	$passwordhash = stripslashes($passwordhash);
	$encoded_username = mysql_real_escape_string($encoded_username);
	$passwordhash = mysql_real_escape_string ($passwordhash);
	//
	if (empty($encoded_username) || empty($password) || empty($password2)){
	die ('You have to enter all details');
	}
	//Check for duplicate usernames
	
	if (!get_magic_quotes_gpc()) {
	$_POST['username'] = addslashes($_POST['username']);
	}
	$usercheck = $_POST['$encoded_username'];
	$check = mysql_query("SELECT username FROM users WHERE username = '$usercheck'")
	or die(mysql_error());
	$check2 = mysql_num_rows($check);
	//
	if ((strstr($encoded_username, "%") && !strstr($encoded_username, "%40")) || strstr($encoded_username, "+")
    || !strstr($encoded_username, "%40")) {
	die ('<H>Invalid email address!</H>');
	}
	//
	$query ="SELECT username FROM users where username ='$username' LIMIT 1";
	$result1 = mysql_query($query,$link) or die(mysql_error());
	$rows = mysql_num_rows($result1);
	//
	if ($rows ==0){
	('Sorry!Email address has been used by another person');
	
	$query1 = "INSERT INTO users(username,Password) VALUES('$username','$passwordhash')";
	$result = mysql_query($query1,$link) or die(mysql_error());
	echo 'Welcome to E-ris';
	echo 'gg';
	}
	//if ($rows ==1){
	//echo 'username already in use';
	//}
	?>
	<?php
	
	}
	else {
	?>
	
	<form action="<?php echo $_SERVER['PHP_SELF']; ?>" method="post">
	<br>
 	Email:<div><input type="text" size="20" maxlength="40" name="username"></div>
	Password:<div> <input type="password" size="20" maxlength="10" name="password"></div>
	Confirm Password:<div><input type = "Password" size "10" maxlength = "10" name = "password2"></div><P></P><br>
	<input type="submit" value="Register"> 
	</form
	<?Php
}
	?>

Please help

:?:
Amaina

[H.Roger]

Add name attribute to the input tag

<input type="submit" value="Register" name="submit">

[Amaina]

Add name attribute to the input tag

<input type="submit" value="Register" name="submit">

Hello H. Roger.......It worked...thank you!

cheers:icon_smile: