.ajax() Bad Request 400 - php

Question

So I built the code for a web application on WAMP (my first time using any server stuff) and a test database we made looking at the client's databases. When trying to implement, we have run into a lot of trouble. They are using an enterprise server (NOTE: I have no idea what I am talking about here) and MSSQL where I just used localhost, root, and no password on WAMP with MYSQL. I have no idea how to help them get the product implemented. It works fine on my computer but for them, it says Bad Request 400 when I have AJAX print out the error text.
ajax request
$.ajax({
type: "GET",
url: "getJobList.php",
data: "hline="+lineLabel[currentLine],
dataType: "json",
success: function(data){
//do successful stuff
}
}
php file
<?php
include "config.php";
$con = mysql_connect($host);
$dbs = mysql_select_db($databaseName, $con);
//get the parameter from URL
$hline=$_GET["hline"];
if (empty($hline)){
echo "1"; //default rate
}
else{
$db=mysql_pconnect($host, $user, $pass);//connect to local database
mysql_select_db($databaseName, $db);//select the database you want to use
if (!$db){
echo ("error connecting to database");
}
else{
//connection successful
$sql = " SELECT partparameters.cspc,processingrate,setuptime,lotsize,duedate,duetime,homeline
FROM jobs
INNER JOIN partcoding
ON jobs.partnumber=partcoding.partnumber
INNER JOIN partparameters
ON partcoding.cspc=partparameters.cspc
WHERE homeline = '$hline'
ORDER BY duedate,duetime ASC";//sql string command
$result=mysql_query($sql) or die (mysql_error());//execute SQL string command
//result contains rows
$arr = array();
$num = 0;
while($rows = mysql_fetch_array($result))
{
$array[$num] = $rows;
$num++;
}
echo json_encode($array);
}
}
?>
php config file
<?php
$host = "localhost";
$user = "root";
$pass = "";
$databaseName = "gmdata1";
?>
Any ideas? Thanks in advance!
EDIT: Fixed a stray parenthesis that I mistyped when posting. Also if it makes a difference I developed on Chrome and the Users are using Firefox. I dont think it should make a difference though because they render the same.
EDIT 2:
Request URL:
http://usmmcsa0wwt01/ProdSched/getJobList.php?hline=G%20%201
Request Method:
GET
Status Code:
HTTP/1.0 400 Bad Request
Request Headers
15:24:24.000
X-Requested-With:XMLHttpRequestUser-Agent:Mozilla/5.0 (Windows NT 6.1; rv:20.0) Gecko/20100101 Firefox/20.0Referer:http://usmmcsa0wwt01/ProdSched/index.phpHost:usmmcsa0wwt01Connection:keep-aliveCache-Control:max-age=0Accept-Language:en-US,en;q=0.5Accept-Encoding:gzip, deflateAccept:application/json, text/javascript, */*; q=0.01
Response Headers
Δ2ms
Server:CIMPLICITY-HttpSvr/1.0Date:Mon, 22 Apr 2013 19:24:24 GMT
This is what I get in their firefox console inspect HTTP request

Answer 1

Your data is wrong. To pick up $_GET["hline"] you either want hline="+lineLabel[currentLine] in the URL (not recommended) or format the data correctly.
data: {"hline": lineLabel[currentLine]},

Answer 2

Try this -
$.ajax({
type: "GET",
url: "getJobList.php",
data: {"hline": lineLabel[currentLine]},
dataType: "json",
success: function(data){
//do successful stuff
}
}