laravel 為已創建的table加字段

php artisan make:migration add_api_token_to_users --table=users

public function up()
    {
        Schema::table('users', function (Blueprint $table) {
            $table->string('api_token',64)->unique();
        });
    }

    /**
     * Reverse the migrations.
     *
     * @return void
     */
    public function down()
    {
        Schema::table('users', function (Blueprint $table) {
            $table->dropColumn(['api_token']);
        });
    }

php artisan migration