registration.php

<?
	include("includes/db.php");
	include("includes/functions.php");
	include("header.php");
	
	// If a user is logged in, it shows an error message saying the person can't register because he/she already has an account.
	if(isset($_SESSION['username'])) {
		echo "<h1 class=\"centered\">Error</h1><p class=\"centered\" style=\"color:red\">You can't register if you're already a user.</p>";
	}
	else {
		
	
	if (! empty($_POST['UserId']) && ! empty($_POST['Password'])) {
		$username = $_POST['UserId'];
		
		// Verifies if both passwords are equal
		if ($_POST['Password'] == $_POST['Password2']) {
			$password = $_POST['Password'];
		}
		else {
			echo "Password Entry Confirmation was unsuccessful, please try again.";
		}
		
		$firstname = $_POST['FirstName'];
		$lastname = $_POST['LastName'];
		$address = $_POST['Address'];
		$city = $_POST['City'];
		$zipcode = $_POST['ZipCode'];
		$state = $_POST['State'];
		$email = $_POST['Email'];
		$dphonenumber = $_POST['DPhoneNumber'];
		
		$checkusername = mysql_query("SELECT * FROM Customer WHERE User_id = '".$username."'");
		
		// Checks if the username is already taken.
		if (mysql_num_rows($checkusername) == 1) {
			echo "<h2>Error</h2><p>That username is taken. Please go back and try again.</p>";
		}
		else {
			$register = mysql_query("INSERT INTO Customer VALUES('$username', '$password', '$firstname', '$lastname', '$address', '$city', '$zipcode', '$state', '$email', '$dphonenumber');");
			
			if ($register) {
				echo "<div class=\"centered\"><h2>Success!</h2><p style=\"color:green\">Your account was successfully created. Please click <a href=\"login.php\">here</a> to login.</p></div>";
			}
			else {
				echo "<div class=\"centered\"><h2>Error!</h2><p>Sorry, your registration failed. Please try again.</p></div>";
			}
		}
	}
	
	else {
?>

<h1 class="centered">Registration</h1>

<p>

<div id="registration_container">

<form method="post" action="registration.php">
<fieldset>
<label for="UserId">User ID*</label> <input type="text" name="UserId" id="UserId" /><br />
<label for="Password">Password*</label> <input type="password" name="Password" id="Password" /><br />
<label for="Password2">Confirm Password*</label> <input type="password" name="Password2" id="Password2" /><br />
<label for="FirstName">First Name*</label> <input type="text" name="FirstName" id="FirstName" /><br />
<label for="LastName">Last Name*</label> <input type="text" name="LastName" id="LastName" /><br />
<label for="Address">Address*</label> <input type="text" name="Address" id="Address" /><br />
<label for="City">City*</label> <input type="text" name="City" id="City" /><br />
<label for="ZipCode">ZipCode*</label> <input type="text" name="ZipCode" id="ZipCode" /><br />
<label for="State">State*</label> <select name="State" id="State">
	<option value="">Choose One</option>
	<option>CA</option>
	<option>FL</option>
	<option>GA</option>
	<option>HI</option>
	<option>PA</option>
	<option>PR</option>
	<option>WA</option>
	</select>
<br /><br />
<label for="Email">Email*</label> <input type="text" name="Email" id="Email" /><br />
<label for="DPhoneNumber">Daytime Phone Number</label> <input type="text" name="DPhoneNumber" id="DPhoneNumber" /><p></p>
</fieldset>

<div class="centered"><input type="submit" value="Submit" /> <input type="reset" value="Reset" /></div><br />
</form>


</div>
</p>
<? }
} ?>

<? include ("footer.php") ?>