Untitled

<?php
require 'connect.php'; // Required Connection

$username = "";
$email = "";
$password = "";
$joindate = "";
$errorarray = array();

if(isset($_POST['register_btn'])){
	$username = strip_tags($_POST['username']);
	$username = str_replace(' ','',$username);
	$username = ucfirst(strtolower($username));
	$_SESSION['username'] = $username;

	$email = strip_tags($_POST['email']);
	$email = str_replace(' ','',$email);
	$email = ucfirst(strtolower($email));
	$_SESSION['email'] = $email;

	$password = strip_tags($_POST['password']);
	$_SESSION['password'] = $password;
	$joindate = date("Y-m-d");

	if(filter_var($username)) {
		$checkusername = mysqli_query($connection, "SELECT username FROM users WHERE username='$username'");
		$numrows_username = mysqli_num_rows($checkusername);
		if($numrows_username > 0) {
			array_push($errorarray, "Username already in use!<br>");
		}
	}

	if(filter_var($email, FILTER_VALIDATE_EMAIL)) {
		$email = filter_var($email, FILTER_VALIDATE_EMAIL);
		$checkemail = mysqli_query($connection, "SELECT email FROM users WHERE email='$email'");
		$numrows_email = mysqli_num_rows($checkemail);
		if($numrows_email > 0) {
			array_push($errorarray, "Email already in use!<br>");
		}
	}

	if(strlen($username) > 25 || strlen($username) < 5) {
		array_push($errorarray, "Your username must be between 5 and 25 characters!<br>");
	}

	if(strlen($password > 30 || strlen($password) < 5)) {
		array_push($errorarray, "Your password must be between 5 and 30 characters!<br>");
	}

	if(empty($errorarray)) {
	$password = md5($password);
	$random_pic = rand(1, 2);
	if($random_pic == 1)
		$profilepicture = "assets/images/profilepictures/defaults/default1.png";
	else if($random_pic == 2)
		$profilepicture = "assets/images/profilepictures/defaults/default2.png";

	$query = mysqli_query($connection, "INSERT INTO users VALUES ('','$username','$email','$password','$joindate','$profilepicture','0','no',',')");
	}
}


?>
<html>
<head>
</head>
<body>
<form action="register.php" method="POST">

<?php if(in_array("Username already in use!<br>", $errorarray)) echo "Username already in use!<br>";
else if(in_array("Your username must be between 5 and 25 characters!<br>", $errorarray)) echo "Your username must be between 5 and 25 characters!<br>"
?>
<input type="text" name="username" placeholder="Username" value="
<?php if(isset($_SESSION['username'])) {
echo $_SESSION['username'];	}
?>"><br>

<?php if(in_array("Email already in use!<br>", $errorarray)) echo "Email already in use!<br>";?>
<input type="email" name="email" placeholder="Email" value="
<?php if(isset($_SESSION['email'])) {
echo $_SESSION['email']; }
?>"><br>

<?php if(in_array("Your password must be between 5 and 30 characters!<br>", $errorarray)) echo "Your password must be between 5 and 30 characters!<br>";?>
<input type="password" name="password" placeholder="Password" value="
<?php if(isset($_SESSION['password'])) {
echo $_SESSION['password'];	 }
?>"><br>

<button type="submit" name="register_btn">Register</button>

</form>
</body>
</html>