Am getting a error when am trying connect inputs from my contact form to my database. Please have a look at following code

HTML Code:
<div id='frmFormMailContainer'>
<h2>Contact Us</h2><form name="Contacts" method="post" action="Insert.php">
<div class="formItem" id="fnamef">
<label for="FirstName" class="testLabel">First name</label>
  <input type="text" name="FirstName" id="FirstName">
<div id="lnamef">
<label for="LastName" class="textLabel">Last name</label>
<input type="text" name="LastName" id="LastName">
<div id="emailf">
<label for="Email" class="textLabel">Email </label>
<input type="text" name="Email" id="Email">
<div id="mobilef">
<label for="Mobile" class="textLabel">Mobile</label>
<input type="tel" name="Mobile" id="Mobile">

<div id="Message">
<label for="Message" class="textLabel">Message</label>
<input type="text" name="Message" id="Message">
<div id="submitf">
<input type="submit" name="submit" id="submit" value="Submit">
</form> </div>
and PHP
PHP Code:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">

<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>Untitled Document</title>

$FirstName $_POST["FirstName"];
$LastName $_POST["LastName"];
$Email $_POST["Email"];
$Mobile $_POST["Mobile"];
$Message $_POST["Message"];


        or die (
"NO connection");

    or die (
"Brak polaczenia");

$sql "INSERT INTO 'test1'.'contacts' ('FirstName', 'LastName', 'Email', 'Mobile', 'Message')
            VALUES ('
$FirstName', '$LastName', '$Email', '$Mobile', '$Message');";

    or die (