Unable to connect to the server to pull data from mysql

Question

Hello,
I am novice working with Flash Builder 4 and I just created a test application which runs well in my computer pulling data from Mysql using PHP and populating a datagrid. But when I transfered it to the my hosting provider failed. I have been doing some modifications to the gateway.php and amf.config.ini to solve some of the issues. Now the application try to run but doesn't populate the data in the datagrid. I included a tracking point in my data service file to read the connections variables, but they come up in blank. I highly appreciate any help. Here are my gateway.php, amf.config.ini and the data service.
gateway.php
<?php
ini_set("display_errors", 1);
$dir = dirname(__FILE__);
$webroot = $_SERVER['DOCUMENT_ROOT'];
$configfile = "$dir/amf_config.ini";
$fp = fopen("tracking.txt", "a");
fwrite($fp, "1-config file " . $configfile . "\r\n");
//default zend install directory
$zenddir = $webroot. '/ZendFramework/library';
//-$zenddir = $webroot;
fwrite($fp, "2-default zendir" . $zenddir . "\r\n");
//Load ini file and locate zend directory
if(file_exists($configfile)) {
     $arr=parse_ini_file($configfile,true);
     if(isset($arr['zend']['webroot'])){
          $webroot = $arr['zend']['webroot'];
          $zenddir = $webroot. '/ZendFramework/library';
     if(isset($arr['zend']['zend_path'])){
          $zenddir = $arr['zend']['zend_path'];
fwrite($fp, "3-after zendir" . $zenddir . "\r\n");
// Setup include path
//add zend directory to include path
set_include_path(get_include_path().PATH_SEPARATOR.$zenddir);
// Initialize Zend Framework loader
require_once 'Zend/Loader/Autoloader.php';
//-require_once 'Autoloader.php';
Zend_Loader_Autoloader::getInstance();
// Load configuration
$default_config = new Zend_Config(array("production" => false), true);
$default_config->merge(new Zend_Config_Ini($configfile, 'zendamf'));
$default_config->setReadOnly();
$amf = $default_config->amf;
fwrite($fp, "4- configfile" . $dafault_config["production"] . "\r\n");
// Store configuration in the registry
Zend_Registry::set("amf-config", $amf);
// Initialize AMF Server
$server = new Zend_Amf_Server();
$server->setProduction($amf->production);
if(isset($amf->directories)) {
     $dirs = $amf->directories->toArray();
     foreach($dirs as $dir) {
         // get the first character of the path.
         // If it does not start with slash then it implies that the path is relative to webroot. Else it will be treated as absolute path
         $length = strlen($dir);
         $firstChar = $dir;
         if($length >= 1)
              $firstChar = $dir[0];
         if($firstChar != "/"){
              // if the directory is ./ path then we add the webroot only.
              if($dir == "./"){                  
                   $server->addDirectory($webroot);
              }else{
                   $tempPath = $webroot . "/" . $dir;
                    $server->addDirectory($tempPath);
          }else{
                  $server->addDirectory($dir);             
fwrite($fp, "5-temp path" . $tempPath . "=>" . "\r\n");
fwrite($fp, "******************************************" . "\r\n");
// Initialize introspector for non-production
if(!$amf->production) {
     $server->setClass('Zend_Amf_Adobe_Introspector', '', array("config" => $default_config, "server" => $server));
        $server->setClass('Zend_Amf_Adobe_DbInspector', '', array("config" => $default_config, "server" => $server));
// Handle request
echo $server->handle();
?>
amf.config.ini
[zend]
;set the absolute location path of webroot directory, example:
;Windows: C:\apache\www
;MAC/UNIX: /user/apache/www
;-webroot =c:/wamp/www/
webroot = /home/frutiexp/public_html
;set the absolute location path of zend installation directory, example:
;Windows: C:\apache\PHPFrameworks\ZendFramework
;MAC/UNIX: /user/apache/PHPFrameworks/ZendFramework
;zend_path = /home/frutiexp/public_html/ZendFramework
[zendamf]
amf.production = true
amf.directories[]=fb41/services
;amf.directories[]=./
CoursesService.php
<?php
*  README for sample service
*  This generated sample service contains functions that illustrate typical service operations.
*  Use these functions as a starting point for creating your own service implementation. Modify the
*  function signatures, references to the database, and implementation according to your needs.
*  Delete the functions that you do not use.
*  Save your changes and return to Flash Builder. In Flash Builder Data/Services View, refresh
*  the service. Then drag service operations onto user interface components in Design View. For
*  example, drag the getAllItems() operation onto a DataGrid.
*  This code is for prototyping only.
*  Authenticate the user prior to allowing them to call these methods. You can find more
*  information at <link>
class CoursesService {
     var $username = "myusername";
     var $password = "mypassword"
     var $server = "localhost";
     var $port = "3306";
     var $databasename = "frutiexp_trainsur";
     var $tablename = "courses";
     var $connection;
      * The constructor initializes the connection to database. Everytime a request is
      * received by Zend AMF, an instance of the service class is created and then the
      * requested method is invoked.
     public function __construct() {
            $this->connection = mysqli_connect(
                                          $this->server, 
                                          $this->username, 
                                          $this->password,
                                          $this->databasename,
                                          $this->port
$fp = fopen("./tracking.txt", "a");
fwrite($fp, "1-service".  $databasename . " " . $username . "\r\n");
fclose($fp);
          $this->throwExceptionOnError($this->connection);
      * Returns all the rows from the table.
      * Add authroization or any logical checks for secure access to your data
      * @return array
     public function getAllCourses() {
          $stmt = mysqli_prepare($this->connection, "SELECT * FROM $this->tablename");         
          $this->throwExceptionOnError();
          mysqli_stmt_execute($stmt);
          $this->throwExceptionOnError();
          $rows = array();
          mysqli_stmt_bind_result($stmt, $row->cou_id, $row->cou_title, $row->cou_overview, $row->cou_objectives);
         while (mysqli_stmt_fetch($stmt)) {
           $rows[] = $row;
           $row = new stdClass();
           mysqli_stmt_bind_result($stmt, $row->cou_id, $row->cou_title, $row->cou_overview, $row->cou_objectives);
          mysqli_stmt_free_result($stmt);
         mysqli_close($this->connection);
         return $rows;
      * Returns the item corresponding to the value specified for the primary key.
      * Add authroization or any logical checks for secure access to your data
      * @return stdClass

Answer 1

Hello Jdesko,
Thank you for you prompt response. Yes, I have changed the connections variables in my dataservice ( I didn't post real values). You are right, after all I didn't make changes on the gateway.php except to add some tracking points. The one that I changed is the amf.config,ini. The application runs without any error exceptions, but don't populate the datagrid. According with the tracing is stoping just when establishing the connection to the database. Please let me know if you have any other clue. thanks