In order to make it easier for relatives and friends to inquire when returning gifts after receiving money, I made a simple improvement to the data query system. Users can now access the query system through the front desk and verify using a separate password. The background provides functions such as adding records, modifying records, and searching records. The system is completely free to use, all source code is open, and there are no encryption measures.
The following is a building tutorial:
First, download the attachment file and upload it to the server's operating environment (requires PHP 5.6 and above).
Upload the database file to your database and modify the database information in the config.php file.
The background management address is/admin, and the default account and password are admin.
The foreground access password can be modified in the index.php file.
Through the above steps, you can easily build and use this data query system.
English 
Chinese