Steps to implement the store credit evaluation function in PHP Developer City

Steps to implement the store credit evaluation function in PHP Developer City

With the development of the e-commerce industry, users’ trust in stores is becoming more and more important. In order to establish a reliable trading environment, the store credit evaluation function in the mall has become an indispensable part. This article will introduce how to use the store credit evaluation function in PHP Developer City, including functional requirements, database design and code implementation.

1. Functional requirements

The store credit evaluation function mainly includes the following functional requirements:

1. Users can evaluate purchased goods and give corresponding Rating;
2. Users can view other people’s evaluations and ratings of the store;
3. The store can view users’ evaluations and ratings.

2. Database design

In order to realize the store credit evaluation function, it is necessary to establish a corresponding database table to store evaluation-related data. The following is the design of the database table:

1. User table (user):

   • User ID (id)
   • User name (username)
   • ...

2. Product table (product):

   • Product ID (id)
   • Product name (name)
   • ...

3. Order table (order):

   • Order ID (id)
   • User ID (user_id)
   • Product ID (product_id)
   • ...

4. Evaluation form (evaluation) :

   • Evaluation ID (id)
   • User ID (user_id)
   • Store ID (shop_id)
   • Product ID (product_id)
   • Evaluation content (content)
   • Score (score)
   • ...

3. Code implementation

Based on the above database design, we can use PHP to implement the store credit evaluation function. The following are the steps for code implementation:

1. User submits a review:

   • The user selects the order to be reviewed and fills in the review content and score;
   • After receiving the evaluation information, the background will store the user ID, store ID, product ID and other relevant information into the evaluation table.

2. Display store evaluation:

   • Display the store’s rating and number of evaluations on the store page;
   • By querying the evaluation table , obtain all evaluation information about the store, and calculate the average rating and number of evaluations.

3. Display product evaluation:

   • Display the product's rating and number of evaluations on the product page;
   • By querying the evaluation table , obtain all evaluation information for the product, and calculate the average rating and number of evaluations.

4. Display user evaluation history:

   • The user's personal center page displays the user's evaluation history of stores and products;
   • By querying the evaluation table, the user's evaluation history is obtained, and the corresponding evaluation content and ratings are displayed.

4. Summary

Through the implementation of the above steps, we can implement the store credit evaluation function in the mall. This function can not only improve users' trust in the store, but also help the store improve its service quality and image. Of course, this is just a simple example, and the actual implementation may involve other details and functions. I hope this article can provide you with some reference for implementing the store credit evaluation function in PHP Developer City.

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