Adds types to migrations (#171)

Author: nunomaduro

database/migrations/2019_05_03_000001_create_customers_table.php

@@ -8,10 +8,8 @@ class CreateCustomersTable extends Migration
 {
     /**
      * Run the migrations.
-     *
-     * @return void
      */
-    public function up()
+    public function up(): void
     {
         Schema::create('customers', function (Blueprint $table) {
             $table->id();
@@ -26,10 +24,8 @@ public function up()
 
     /**
      * Reverse the migrations.
-     *
-     * @return void
      */
-    public function down()
+    public function down(): void
     {
         Schema::dropIfExists('customers');
     }

database/migrations/2019_05_03_000002_create_subscriptions_table.php

@@ -8,10 +8,8 @@ class CreateSubscriptionsTable extends Migration
 {
     /**
      * Run the migrations.
-     *
-     * @return void
      */
-    public function up()
+    public function up(): void
     {
         Schema::create('subscriptions', function (Blueprint $table) {
             $table->id();
@@ -33,10 +31,8 @@ public function up()
 
     /**
      * Reverse the migrations.
-     *
-     * @return void
      */
-    public function down()
+    public function down(): void
     {
         Schema::dropIfExists('subscriptions');
     }

database/migrations/2019_05_03_000003_create_receipts_table.php

@@ -8,10 +8,8 @@ class CreateReceiptsTable extends Migration
 {
     /**
      * Run the migrations.
-     *
-     * @return void
      */
-    public function up()
+    public function up(): void
     {
         Schema::create('receipts', function (Blueprint $table) {
             $table->id();
@@ -34,10 +32,8 @@ public function up()
 
     /**
      * Reverse the migrations.
-     *
-     * @return void
      */
-    public function down()
+    public function down(): void
     {
         Schema::dropIfExists('receipts');
     }