restore composer.json, add mysqli extension

app/Jobs/Site/Checkout/BillingStoreJob.php

@@ -0,0 +1,34 @@
+<?php
+
+namespace App\Jobs\Site\Checkout;
+
+use App\Models\Billing;
+
+class BillingStoreJob
+{
+
+    protected $order;
+    protected $total;
+    protected $payment_system;
+
+    public function __construct($order, $total, $payment_system)
+    {
+        $this->order = $order;
+        $this->total = $total;
+        $this->payment_system = $payment_system;
+    }
+
+    /**
+     * Execute the job.
+     *
+     * @return void
+     */
+    public function handle()
+    {
+        return Billing::create([
+            'order_id' => $this->order->id,
+            'amount' => $this->total,
+            'payment_system' => $this->payment_system
+        ]);
+    }
+}