With the development and popularization of Internet technology, more and more enterprises and merchants are choosing to sell products and services online. Therefore, order inquiry has become an essential function.

This article will introduce how to use the ThinkPHP framework to query this month's orders. If you are a PHP developer or are learning the ThinkPHP framework, this article will be helpful to you.

First, we need an order data table, and the table contains at least the following fields:

• id: order number
• customer_name: customer name
• order_date: Order date
• amount: Order amount

In the ThinkPHP framework, we can use the ORM (Object Relational Mapping) method to operate the database and simplify SQL operations. The following is an example order model:

namespace?app\model;

use?think\Model;

class?Order?extends?Model
{
????protected?$table?=?'order';?//?數(shù)據(jù)表名
????
????public?function?scopeThisMonth($query)
????{
????????return?$query->whereBetweenTime('order_date',?'month');
????}
}

In this order model, we define a scope named ThisMonth, which will return data for this month's orders. We used ThinkPHP's built-in whereBetweenTime method to implement the query for this month's date range.

Now, we can call the model in the controller:

namespace?app\controller;

use?think\Controller;
use?app\model\Order;

class?OrderController?extends?Controller
{
????public?function?thisMonth()
????{
????????$orders?=?Order::thisMonth()->select();
????????return?json($orders);
????}
}

In this controller, we call the ThisMonth scope of the Order model and return the query results in JSON format. If you need to use other data formats, you can choose other ThinkPHP built-in response methods.

Finally, we need to add an API route in the route to expose the controller method:

use?think\facade\Route;

Route::get('/order/this-month',?'OrderController@thisMonth');

As mentioned above, we can create an order model and define a scope to query Order data for this month. The model is called in the controller and the results are returned to the user of the API.

In short, the ThinkPHP framework provides many built-in methods and functions to facilitate developers to quickly build powerful web applications. I hope this article will be helpful to developers who are learning this framework.

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