I am getting this error: Parse error: syntax error, unexpected 'else' (T_ELSE) in C:\wamp\www. I an having trouble finding the source. : Hope someone with fresh eyes can help.Thanks-R

<?php
/*CHECKS IF SUBMIT BUTTOM IS CLICKED---SECURITY(Button type in signup.php file)--*/

      if (isset($_POST['submit'])) {
	
	/*INCLUDE DATABASE FILE--*/
	
	    include_once 'dbh.inc.php';
	
/*CREATE A VARIABLE--(CALLED FIRST)--(IS THE FIRST INPUT INSIDE THE SIGNUP FORM) (allows for code to be converted to text) [[Cannot input code into box}}--*/

	    $first = mysqli_real_escape_string($conn, $_POST['first']);
	    $last = mysqli_real_escape_string($conn, $_POST['last']);
	    $email = mysqli_real_escape_string($conn, $_POST['email']);
    	$uid = mysqli_real_escape_string($conn, $_POST['uid']);	
	    $pwd = mysqli_real_escape_string($conn, $_POST['pwd']);
	

	
	//ERROR HANDLERS
	
	//CHECK FOR EMPTY FIELDS---(double pipes means or in php)
	  if  (empty($first) || empty($last) || empty($email) || empty($uid) || empty($pwd)) {
		
		   header("Location: ../signup.php?signup=empty");
		   exit();
    } else {
		//CHECK IF INPUT CHARACTERS ARE VALID
		
	  if (!preg_match("/^[a-zA-Z]*$/", $first) || !preg_match("/^[a-zA-Z]*$/", $last)) {
			
		   header("Location: ../signup.php?signup=invalid");
		   exit();
		
			
	} else {
		//CHECK IF EMAIL IS VALID
	  if (!filter_var($email, FILTER_VALIDATE_EMAIL))  { 
		   header("Location: ../signup.php?signup=email");
		   exit();	
	} else {
			$sql = "SELECT * FROM users WHERE user_uid='$uid'";
			$result = mysqli_query($conn, $sql);
			$resultCheck = mysqli_num_rows($result);
			
	  if ($resultCheck > 0){
			header("Location: ../signup.php?signup=usertaken");
			exit();
		
	} else {
			//HASHING PASSWORD---
			$hashedPwd = password_hash($pwd, PASSWORD_DEFAULT);
			
			//INSERT USER INTO DATABASE
			
			$sql= "INSERT INTO users (user_first, user_last, user_email, user_uid, user_pwd) VALUES ('$first','$last', '$email', '$uid','$hashedPwd' );";
			 mysqli_query($conn, $sql);
			
			 header("Location: ../signup.php?signup=success");
		     exit();	
		
	    	}
			
	     }
	  		
	  }	
		
    } else{
	        /*COLON MUST NOT HAVE SPACE BETWEEN LOCATION---SPACE BETWEEN ../---(TAKES BACK A DIRECTORY)--PREVENTS GOING TO URL TO ACCESS FILE PAGE.--TAKES USER
	        BACK TO SIGNUP PAGE*/
            header("Location: ../signup.php");
	        /*exit--closes off script from running--(IF ANYTHING AFTER EXIT FUNCTION)*/
	        exit();
}