Kan ikke loade datastore i EXTJS (sencha)

Koden til data1.php er som følger:

<?php


#First we include our credentials file
include('config.inc.php');
#And now we connect to the database
//connection String
$connect = mysql_connect($ebis_sql_host, $ebis_sql_user, $ebis_sql_pass)
or die('Could not connect: ' . mysql_error());
//select database
mysql_select_db($ebis_sql_db, $connect);
//Select The database
$bool = mysql_select_db($ebis_sql_db, $connect);
if ($bool === False){
    print "can't find $database";
}


if(!isset($search) || $search == '') {


// get data and store in a json array
$query = "SELECT MainId, MainCatalogNo, MainTitel, MainEraID
FROM  train_item_main" ;
if ($sort != "") {
    $query .= " ORDER BY MainCatalogNo ";
}
#$query .= " LIMIT ".$start.",".$limit;
$result = mysql_query($query) or die("SQL Error 1: " . mysql_error());
while ($row = mysql_fetch_array($result, MYSQL_ASSOC)) {
    $MyStore1[] = array(
        'MainId' => $row['MainId'],
        'MainCatalogNo' => $row['MainCatalogNo'],
    'MainEraID' => $row['MainEraID'],
    'MainTitel' => $row['MainTitel']
        );
}

$myData = array('MyStore1' => $MyStore1);
echo json_encode($myData);
mysql_free_result($result);

}


$myData = array('MyStore1' => $MyStore1);
echo json_encode($myData);
#mysql_free_result($result);
    #  }
//And we're done
?>

Forkert navn på datastore