Untitled

<html>
<head><title>USER AUTHENTICATION</title></head>
<body><body background=img24.jpg>
<body text=black></body>
</html>

<?php


//-----------------checks------------------------
	$email = $_POST['email'];
  $uid = $_POST['userid'];
  $psw = $_POST['psw'];
  $repsw = $_POST['psw_re'];
  $firstname = $_POST['firstname'];
  $lastname = $_POST['lastname'];
	$am = $_POST['am'];
	$phone = $_POST['phone'];
	$sem = $_POST['sem'];

	$shauser = sha1($uid);
	$shapass = sha1($psw);

	if(userid_validation($uid,5,12)){
		if(name_validation($firstname,5,12)){
			if(lname_validation($lastname,5,12)){
				if(passid_validation($psw,7,12)){
					if(repassid_validation($psw,$repsw)){
						//<meta http-equiv='refresh' content='0; url=index.php'>;
					//	if(filter_var($email, $FILTER_VALIDATE_EMAIL)){
					//	}
					$con = mysqli_connect('localhost','root');
						if (!$con) { die('Could not connect ERROR: ' . mysqli_error()); }
						mysqli_select_db($con,"project_awt");

						$insert_query="INSERT INTO student (username,password,am,name,surname,semester,telephone,email)VALUES
						              ('".$shauser."','".$shapass."','".$am."','".$firstname."','".$lastname."','".$sem."','".$phone."','".$email."')";
						$select_data= mysqli_query($con,$insert_query);

						$check_validation="SELECT username,password,am,name,surname,semester,telephone,email
						                   FROM student
										   WHERE username='".$shauser."' AND password='".$shapass."'";

						$select_data= mysqli_query($con,$check_validation);
						while ($row = mysqli_fetch_array($select_data)){
							   echo "1) am:".$row['am']."<br>";
							   echo "2) name:".$row['name']."<br>";
							   echo "3) surname:".$row['surname']."<br>";
							   echo "4) semester:".$row['semester']."<br>";
							   echo "5) tel:".$row['telephone']."<br>";
							   echo "6) email:".$row['email']."<br>";
							   echo "7) usn:".$uid."<br>";
							   echo "8) pwd:".$psw."<br>";
						}

						mysqli_close($con);
						echo "<meta http-equiv='refresh' content='0; url=index.html'>";
					}
				}
			}
		}
	}
	return false;

	function repassid_validation($psw,$repsw){
		if($repsw != $psw){
			echo "<br>Password and re_password is not the same!!";
			return false;
		}else if($repsw == $psw){
			return true;
		}
	}

	function passid_validation($psw,$mx,$my){
		if (strlen($psw) == 0 || strlen($psw) >= $my || strlen($psw) < $mx){
			echo "<br> Password should not be empty / length be between $mx to $my";
			return false;
		}
		return true;
	}

	function lname_validation($uid,$mx,$my){
		if (strlen($uid) == 0 || strlen($uid) >= $my || strlen($uid) < $mx){
			echo "<br> User lastname should not be empty / length be between $mx to $my";
			return false;
		}
		return true;
	}

function userid_validation($uid,$mx,$my){
	if (strlen($uid) == 0 || strlen($uid) >= $my || strlen($uid) < $mx){
		echo "<br> User Id should not be empty / length be between $mx to $my";
		return false;
	}
	return true;
}

function name_validation($uid,$mx,$my){

	if (strlen($uid) == 0 || strlen($uid) >= $my || strlen($uid) < $mx){
		echo "<br> User Name should not be empty / length be between $mx to $my";
		return false;
	}
	return true;
}


if(filter_var($email, FILTER_VALIDATE_EMAIL)) {
	echo "<br> mail ok";
	return true;
  }
  else{
	  echo "<br> mail not ok";
	  return false;
  }


?>