What is the method to implement the member points function of PHP development ordering system?

With the rapid development of the Internet, the catering industry is gradually covered by e-commerce. The informatization of catering systems has become an integral part of the catering industry. In this fierce market competition, how to attract customers and improve customer loyalty is one of the problems that every catering company needs to solve. The member points function of the ordering system is a solution.

As an open source scripting language, PHP has the advantages of being cross-platform and easy to learn and use, so it is widely used in the field of Web development. In the process of developing a food ordering system using PHP, how to implement the member points function?

1. Database design

First, you need to design the data table of member points in the database. It mainly includes the following fields: member ID, member name, membership level, member points, member balance, points redemption ratio, etc. Among them, membership levels are divided into ordinary members, silver members, gold members, diamond members, etc. The points exchange ratios for different levels are different. Member points and membership balance are calculated based on the user's shopping amount and points redemption ratio.

2. Front-end design

In the front-end interface, you need to design pages such as "My Points" and "Points Redemption". Among them, the "My Points" page is mainly used to display the user's point balance, points record, membership level information, etc. The "Points Redemption" page is mainly used for users to redeem points into balances. When redeeming, calculations need to be made based on the redemption type selected by the user and the corresponding redemption ratio, and the user's account balance and points need to be changed.

3.PHP code implementation

In terms of background code implementation, it is necessary to implement functions such as querying member information based on user ID, calculating user balance and points, and saving user redemption records. The specific code is as follows:

(1) Query member information

$sql = "select * from member where member_id=".$_SESSION['member_id'];
$res = mysql_query ($sql);
$row = mysql_fetch_array($res);

(2) Calculate user balance and points

$balance = $row['balance'] $points * $exchange_rate;
$points_total = $row['points_total'] $points;

(3) Save user exchange record

$insertSql = "insert into exchange_record(member_id, exchange_time, exchange_type, exchange_points, exchange_balance) values(".$_SESSION['member_id'].", ".time().", ".$exchange_type.", ".$points.", ".$balance.")" ;
mysql_query($insertSql);

4. Integrate payment system

After realizing the function of redeeming points for balance, the payment system also needs to be integrated. When the user chooses to pay with balance, the balance needs to be deducted and the deducted balance is saved in the database. The specific code is as follows:

$sql = "update member set balance = ".$new_balance." where member_id=".$_SESSION['member_id'];
mysql_query($sql);

Summary

Through the above database design, front-end design and PHP code implementation, we can smoothly Realize the member points function of an ordering system. Users can earn points during the shopping process, and the accumulated points can be upgraded to senior members and enjoy more preferential activities; users can also exchange points for balance to use in their next consumption. This function of membership points can increase customer loyalty and purchase desire, and is an indispensable part of the modern catering system.

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