PHP hangs on a loop and never makes Request - php

Question

I have a RESTful API that I need to inteact with using CURL. I have created a wrapper class that has a static function with the CURL code.
class ApiInvoke
{
public static function execute($username, $password, $endpoint, $data = array(), $options = array())
{
//Rest of the CURL code goes here.....
}
}
I the created a class where I call the static APIInvokve class method to actually execute the API call. Below is the consumer class for ApiInvoke class above.
require "api_invoke.php"
class FlowgearConnect
{
//Properties go gere
public function getResults($model, $workflow, $data)
{
$endpoint = $this->getEndpoint($model, $workflow);
$results = array();
if(!is_null($endpoint)){
$results = ApiInvoke::execute('username', 'password', $endpoint, $data array('timeout' => 30));
}
return $results;
}
//....
}
Then I have a ParentClass class that create an instance of FlowgearConnect object which is made avalable to sub-classes. However, all subclasses are are processed inside the same parent class.
class ParentClass
{
private $Flowgear;
public function init()
{
$this->Flowgear = new FlowGearConnect(); //Assuming it has been required somewhere
}
}
Then we may have ChildClassA and ChildClassB which extends ParentClass. By vartue of the child classes extending the parent class they have access to the instance of $this->Flowgear object already because below is how the FlowgearConnect class is used:
class ChildClassA
{
public function getResults()
{
$results = $this->Flowgear->getResults('child_a', 'latestEvents', array());
}
}
ChildClassB has the very same function or rather exact except it might be responsible for getting a list of orders for example.
How these child classes are processed inside the parent class is depicted below:
//A function inside the ParentClass to process ChildClassA and ChildClassB
public function processModules()
{
$modules = $request->getModules();
foreach($modules as $module){
require_once "modules/' . $module;
$Module = new $module();
$Module ->getResults();
}
}
Something along these lines is not right.... Basically the extending class creates an instance of a class that is used by child classes. Somewhere somehow something is not right here and I guess it has everything to do with the facy that I am not using singgleton. I could if I new how to where CURL is concerned.

Answer 1

Stupid of me to ever thought I could never be able to create just one instance of a curl object thanks to Rayhan’s Http Client class (http://raynux.com/blog/2009/06/13/http-client-class-for-php-development/).
Basically what I wanted was to create a CURL SINGLETON class such that I do not have instances of the same object created over and over again.
Below is a skeleton of how I went about to achieve this:
class Flowgear
{
static private $_instance;
//Rest properties here...
public function __cosntsruct()
{ $this->_token = $this->_username .':'. $this->_passoword; }
public function execute()
{
//Call a class that handles the actual API invocation passing all relevant data
}
static public function &getInstance()
{
if(self::$_instance == null){
self::$_instance = new self;
}
return self::$_instance;
}
}
Then I simply get a single instance of the class by calling Flowgear::getInstance();