Readd STK class

src/C2B.php

@@ -18,7 +18,7 @@ public static function register($callback = null, $response_type = "Completed")
             : "https://sandbox.safaricom.co.ke/mpesa/c2b/v1/registerurl";
 
         $curl_post_data = array(
-            "ShortCode"       => parent::$config->shortcode,
+            "ShortCode"       => parent::$config->headoffice,
             "ResponseType"    => $response_type,
             "ConfirmationURL" => parent::$config->confirmation_url,
             "ValidationURL"   => parent::$config->validation_url,

src/STK.php

@@ -0,0 +1,53 @@
+<?php
+
+namespace Osen\Mpesa;
+
+use Osen\Mpesa\Service;
+
+class STK extends Service
+{
+    /**
+     * @param $phone The MSISDN sending the funds.
+     * @param $amount The amount to be transacted.
+     * @param $reference Used with M-Pesa PayBills.
+     * @param $description A description of the transaction.
+     * @param $remark Remarks
+     *
+     * @return array Response
+     */
+    public static function send($phone, $amount, $reference = "ACCOUNT", $description = "Transaction Description", $remark = "Remark", $callback = null)
+    {
+        $phone = (substr($phone, 0, 1) == "+") ? str_replace("+", "", $phone) : $phone;
+        $phone = (substr($phone, 0, 1) == "0") ? preg_replace("/^0/", "254", $phone) : $phone;
+        $phone = (substr($phone, 0, 1) == "7") ? "254{$phone}" : $phone;
+
+        $timestamp = date("YmdHis");
+        $password  = base64_encode(parent::$config->shortcode . parent::$config->passkey . $timestamp);
+
+        $endpoint = (parent::$config->env == "live")
+            ? "https://api.safaricom.co.ke/mpesa/stkpush/v1/processrequest"
+            : "https://sandbox.safaricom.co.ke/mpesa/stkpush/v1/processrequest";
+
+        $curl_post_data = array(
+            "BusinessShortCode" => parent::$config->headoffice,
+            "Password"          => $password,
+            "Timestamp"         => $timestamp,
+            "TransactionType"   => (parent::$config->type == 4) ? "CustomerPayBillOnline" : "CustomerBuyGoodsOnline",
+            "Amount"            => round($amount),
+            "PartyA"            => $phone,
+            "PartyB"            => parent::$config->shortcode,
+            "PhoneNumber"       => $phone,
+            "CallBackURL"       => parent::$config->callback_url,
+            "AccountReference"  => $reference,
+            "TransactionDesc"   => $description,
+            "Remark"            => $remark,
+        );
+
+        $response = parent::remote_post($endpoint, $curl_post_data);
+        $result   = json_decode($response, true);
+
+        return is_null($callback)
+            ? $result
+            : \call_user_func_array($callback, array($result));
+    }
+}