Looking for some PHP help. error in your SQL syntax

<?php
// Pick up the form data and assign it to variables
$id = $_POST['id'];
$name = $_POST['name'];
$model = $_POST['model'];
$desc = $_POST['desc'];
$image = $_POST['image'];


// contact to database

$connect = mysql_connect("localhost", "ADMIN", "PASS") or die ("Error , check your server connection.");

mysql_select_db("DBNAME");

 

//Get data in local variable

$id=$_POST['id'];
$name=$_POST['name'];
$model=$_POST['model'];
$desc=$_POST['desc'];
$image=$_POST['image'];
 

// check for null values

if ($name==""  or $model=="")

echo "All fields must be entered, hit back button and re-enter information";

else{

$query="INSERT INTO new_equip(id, name, model, desc, image) 
VALUES('$id','$name','$model','$desc','$image')";



mysql_query($query)  or die(mysql_error());


}

// Redirect
header("Location: Admin_AddListing.php");

?>