stripe-class

<?php 
	/******************************************
	* Function    : subscriptions_delete();
	* Description : Delete the subscription on stripe no more recurring billing  
	* Author 	  : devender Kumar
	* Twitter 	  : @kantsverma
	******************************************/	
	// First your need to downalod the stripe lib from the stripe official site then upload that in your project direcroty
	// and add include the library file like below in class make sure path will be correct 
	
include(APPPATH.'libraries/stripe_new/lib/Stripe.php');
 
if ( ! defined('BASEPATH')) exit('No direct script access allowed');

class Stripe {


	private $Apikey;
	
    function __construct(){

		parent::__construct();
		// for test purpose		
		$this->Apikey = Stripe::setApiKey("sk_test_uelzkn6bJeWwucEFeuaCnm90");
		
   }

	/******************************************
	* Function    : update_subscription_plan();
	* Description : This is used to upgrade or change the subscription plan on stripe
	* Author 	  : devender 
	* Twitter 	  : @kantsverma
	******************************************/	
	
	function update_subscription_plan()
	{		
	
	
		$result['errors'] = '';
		$result['success'] = false;
		
		// check the previous plan of users by its id 
		//print_r($this->session->userdata('subscription_id'));
		
		// previous plan id 
		$lastPlan = '2month_plan';
		
		
		if($lastPlan != $_POST('monthly_plan') ){
		
			// get the last date of previous plan and set it to this variable is should be strtotime 
			$lastDate  = '';
			
			// compare with the stripe plan id with type of plan is previous 
			if($_POST['plan'] == 3){
				$trial_end = strtotime(date("Y-m-d", strtotime(date("Y-m-d", $lastDate))) . " +6 month");
			}elseif($_POST['plan'] == 2){
				$trial_end = strtotime(date("Y-m-d", strtotime(date("Y-m-d", $lastDate))) . " +3 month");
			}else{
				$trial_end = strtotime(date("Y-m-d", strtotime(date("Y-m-d", $lastDate))) . " +1 month");
			}
			
			$subscription_data = array( 
				'id'=>$this->session->userdata('subscription_id'),
				'plan_id'=>$this->input->post('monthly_plan'),
				'customer_id'=>$this->session->userdata('customer_id'),
				'trial_end'=>$trial_end
			);
			
			$c = Stripe_Customer::retrieve($_POST['customer_id']);
			
			if($c){
				// updat ethe plan of users 
				try {
					//print_r($this->input->post('monthly_plan'));
					
					$plan = Stripe_Plan::retrieve($this->input->post('monthly_plan'));
					
					if($plan->id){
						$planId = $plan->id;
					}else{
						$planId = $_POST('monthly_plan');
					}
					
					if($planId == 3){
						$planType = '6 month';
					}elseif($planId == 2){
						$planType = '3 month';
					}else{
						$planType = '1 month';
					}
					// update the subscription on stripe 
					$c->updateSubscription(array("plan" => $planId, "prorate" => false ));
					
					// update here in database latest plan 
					//$this->model_account->update_subscription($subscription_data);
					$result['success'] = 'Thank you for changing your subscription, you are now on the '.$planType.'-month plan!';
			
				}catch (Exception $e) {
					$result['success'] = $e->getMessage();
				}
				
			}else{
				$result['success'] = 'Sorry !There is some problem with customer id please try again later';
			}
		}else{
			$result['success'] = 'Sorry ! you have already this plan please select another';
		}
			
		  echo json_encode($result);

	}
	

	/******************************************
	* Function    : subscriptions_delete();
	* Description : Delete the subscription on stripe no more recurring billing  
	* Author 	  : devender 
	* Twitter 	  : @kantsverma
	******************************************/	

	function subscriptions_delete()
	{
		if(@$_POST['customer_id']){
			try {
			// get customer from stripe using customer ID
			$cu = Stripe_Customer::retrieve($_POST['customer_id']);
			// set cancelled his subscription on period end on recent subscription
			$cancel = $cu->cancelSubscription(array('at_period_end' => true));
			
				if($cancel->id){
					$result['success'] = 1;				
				}else{
					$result['error'] = 'Failed to cancel subscription';				
				}
				
			}catch (Exception $e) {
				$result['error'] = $e->getMessage();
			}
		}else{
			$result['error'] = 'Not found any Subscriber id';
		}
		echo json_encode($result);
	}
	
	/******************************************
	* Function    : update_payment();
	* Description : Update payment on stripe 
	* Author 	  : devender 
	* Twitter 	  : @kantsverma
	******************************************/

 	function update_payment()
	{

			$_POST['customer_id'];
			try {
				// get customer from stripe using customer ID
				$cu = Stripe_Customer::retrieve($_POST['customer_id']);
				
				$cu->card = array('number'=>$_POST['id_cardnumber'],
								'exp_month'=>$_POST['id_month'],
								'exp_year'=>$_POST['id_year'],
								'cvc'=>$_POST['id_cvv'],
								'name'=>$_POST['id_firstname'].' '.$_POST['id_lastname'],
								'address_line1'=>$_POST['id_address1'],
								'address_line2'=>$_POST['id_apt'],
								'address_zip'=>$_POST['id_zip'],
								'address_state'=>$_POST['id_state'],
								'address_city'=>$_POST['id_city'],
								'address_country'=>$_POST['country']
					);

				$cu->save();
			} catch (Exception $e) {
				$result['success'] = $e->getMessage();
			}

	}

	/******************************************
	* Function    : create_new_subscription();
	* Description : Creaqting new subscription on stripe 
	* Author 	  : devender 
	* Twitter 	  : @kantsverma
	******************************************/
	
	function create_new_subscription(){
		 	
		$result['errors'] = array();
		$result['success'] = false;
		
			// stripe payment go here 
			$_POST['recurring']					= 'yes';
			$using_discount = false;
			$payment = '';
			try {
				// create a token to access the data from stripe 
				$tokens = Stripe_Token::create(array(
					"card" => 
							array(
								'number'			=>	$_POST['card_number'],
								'exp_month'			=>	$_POST['month'],
								'exp_year'			=>	$_POST['year'],
								'cvc'				=>	$_POST['cvv'],
								'name'				=>	$_POST['firstname'].' '.$_POST['lastname'],
								'address_line1'		=>	$_POST['address'],
								'address_line2'		=>	$_POST['apt'],
								'address_zip'		=>	$_POST['postal_code'],
								'address_state'		=>	$_POST['state'],
								'address_country'	=>	$_POST['country']
								)
					)
				);
				$token = $tokens->id;
				$plan_id = strip_tags(trim(($_POST['package_id'])?$_POST['package_id']:'1'));
				
					// check if there is any coupon used by customer 
					if($this->input->post('coupon_code')){
						$customerArr = Stripe_Customer::create(array(
						  "card" => $token,
						  "plan" => $plan_id,
						  "description" => strip_tags($_POST['email']),
						  "coupon" => strip_tags($this->input->post('coupon_code'))
						  )
						);
					}else{
						$customerArr = Stripe_Customer::create(array(
						  "card" => $token,
						  "plan" => $plan_id,
						  "description" => strip_tags($_POST['email'])
						  )
						);
					}
					// check customr create or not 
					
					if($customerArr->id){
					
						//// Save All Information in DataBase
						$id = $this->session->userdata('login_id');
						
						////insert information in subscriptions table
						// Perform here  the databse entry 
					
						$result['success'] = 1;
					}else{
						$result['success'] = 0;
					}
				
			} catch (Exception $e) {
				$result['success'] = $e->getMessage();
			}
		
		echo json_encode($result);
	
	}
	

	/******************************************
	* Function    : validate_coupon();
	* Description : check valid coupon from stripe  
	* Author 	  : devender 
	* Twitter 	  : @kantsverma
	******************************************/
   function validate_coupon()
   {

		$res='';           
		$using_discount = false;
		$coupon_code = $_POST('coupon_code');
		if(isset($coupon_code) && strlen(trim($coupon_code)) > 0) {

			$_POST['recurring']	= 'yes';
			$using_discount = true;

			// we have a discount code, now check that it is valid			
			try {
				$coupon = Stripe_Coupon::retrieve( trim( $_POST('coupon_code') ) );
				// if we got here, the coupon is valid
			} catch (Exception $e) {
				// an exception was caught, so the code is invalid
				$error = "The coupon code you entered is invalid. Please click back and enter a valid code, or leave it blank for no discount.";
				$res = 'notmatched';
			}
			
		}else{

		   $res = 'matched';

		}
		
		return $res;
	
	}

}