laravel migrations

creat new table
php artisan make:migration creat_xxx_table
到 database\migrations 找到該檔案打開編輯

    public function up()
    {
        Schema::create('xxx', function (Blueprint $table) {
            $table->increments('id');
            $table->timestamps();
        });
    }

     public function down()
    {
        Schema::drop('xxx');
    }

add field
php artisan make:migration add_field_xxx_table
到 database\migrations 找到該檔案打開編輯

     public function up()
    {
        //
        Schema::table('xxx', function (Blueprint $table) {
        $table->string('id');
        });
    }

     public function down()
    {
        //
        Schema::table('xxx', function (Blueprint $table) {
        $table->dropColumn('id');
        });
    }

以上編輯完存檔後執行 php artisan migrate 即可。