How do I make a local server send mails with php?

Question

Still learning PHP. I'm trying to practice making a form that mails it's info to an email. I use wampserver and the php never fails to give me an error. Please check it out and tell me if it's an issue from my code or if local servers just can't send emails. I tried "configuring" my wampserver but I ultimately ended up messing my Apache and PHP. So I need help. Here's my HTML

<div class="container">
<div class="col-md-6 wrapper col-md-offset-3">
<h2>Sign Up</h2>
<?php echo $result; ?>
<p class="lead">Please fill in your credentials below: </p>


<form class="form-group" method="post">
 <label for="first_name">First Name</label>
  <input name="first_name" class="form-control" type="text" value="<?php echo $_POST['first_name']; ?>"/>
  <label for ="last_name">Last Name</label>
  <input name = "last_name" class="form-control" type="text" value="<?php echo $_POST['last_name']; ?>"/>
  <label for ="Username">Username</label>
  <input name="Username" class="form-control" type="text" value="<?php echo $_POST['Username']; ?>"/>
  <label for="email">Email</label>
  <input name="email" class="form-control" type="email" value="<?php echo $_POST['email']; ?>"/>
  <label for ="password">Password</label>
  <input name ="password" class="form-control" type="password" value="<?php echo $_POST['password']; ?>"/>
  <label for="confirm_password">Confirm Password</label>
  <input name="confirm_password" class="form-control" type="password" value="<?php echo $_POST['confirm_password']; ?>"/>
  <input type="submit" name="submit" class="form-control btn" id="submit" value="Submit" />
</form>
  <p>Already a user? <a href="#">Sign in</a></p>
  </div>
  </div>
  </body>

And here's my PHP

      <?php
      if ($_POST["submit"]){
      if (!$_POST["first_name"]){
        $error="<br />Please enter your First Name";
      }
      if (!$_POST["last_name"]){
        $error.="<br />Please enter your Last Name";
      }
      if (!$_POST["Username"]){
        $error.="<br />Please enter a Username";
      }
      if (!$_POST["email"]){
        $error.="<br />Please enter an email";

      }  if ($_POST["email"]!= "" AND !filter_var($_POST["email"], FILTER_VALIDATE_EMAIL)) {
          $error.="<br />Please enter a valid email address";
        }
      if (!$_POST["password"]){
        $error.="<br />Please enter a password";
      }
      if (!$_POST["confirm_password"]){
        $error.="<br />Please confirm your password";
      }
      if ($_POST["password"]!=$_POST["confirm_password"]){
        $error.="<br />Please enter matching passwords";
      }
      $result = '<strong style="color:red;"><span>There were error(s) in your form:'.$error.'</span></strong><br />';
      if($error==""){
        $to="eapriok@gmail.com"; $subject="New Member to Chuk's site";
        if( mail($to, $subject, "Name $_POST[\"first_name\"] $_POST[\"last_name\"] and his Username is $_POST[\"Username\"]. Password is $_POST[\"password\"]." )){
          $result='<div class="alert alert-info">You have been signed in successfully. Please wait while we take you to your dashboard</div>';
        }else{
          $result='<div class="alert alert-danger">Something went wrong and we couldn\'t complete the registration. Please try again.</div>';
        }
    }
  }

 ?>

Right now this is the error PHP is throwing to my face, "( ! ) Parse error: syntax error, unexpected '' (T_ENCAPSED_AND_WHITESPACE), expecting identifier (T_STRING) or variable (T_VARIABLE) or number (T_NUM_STRING) in C:\wamp\www\php\contactform.php on line 56"

I've gotten really frustrated...