Lab 9 And 10 Web Server Programming Create A New Folder

Lab 9 And 10 Web Server Programmingcreate A New Folderi Suggest Tha

Create a new folder to store your files for the lab. The lab involves developing a PHP web application that manages a database, such as an inventory program, with multiple modules for add, view, edit, delete, and filter records. The program should be broken into small pieces, each handling a specific functionality, and include a hierarchy chart illustrating module relationships. The project also requires creating HTML forms, PHP scripts for database connection, data manipulation, and display. Additionally, a navigation menu for different actions and features like sorting and filtering data are necessary. The application should use PHP functions like mysql_connect(), mysql_select_db(), mysql_query(), mysql_fetch_assoc(), and mysql_close(), to interact with a MySQL database. The program should include features for user login with password hashing for security. Submissions include a Word document with a link to the site, a hierarchy chart, and source code files well-commented and professionally organized. The first part involves designing the database, creating forms, and establishing modular PHP scripts for CRUD operations. The second part extends functionality with sorting, filtering, and user authentication.

Paper For Above instruction

Developing a comprehensive web server application using PHP and MySQL requires meticulous planning, modular coding, and effective data management. This project aims to create an inventory management system, exemplified by the Kettel’s Auto Parts database, but adaptable for various entrepreneurship themes. The system is designed as a large, multi-module application divided into smaller, manageable components to facilitate development, testing, and maintenance.

The initial step involves creating a dedicated folder, such as "Lab9_10", to organize all related files. Essential files include HTML forms for data input, PHP scripts for database interactions, and included files for reusable functions. The core PHP functions used are mysql_connect(), mysql_select_db(), mysql_query(), mysql_fetch_assoc(), and mysql_close(). These functions handle establishing connections, selecting databases, executing SQL commands, fetching data rows, and closing connections respectively. Encapsulating the database connection code within an include file, like "parts_include.php," enhances code efficiency and simplifies updates, such as password changes.

The project's foundational component is the database table to store inventory data. The table schema should include fields for item details, along with two date fields: date_added and date_modified, using the PHP now() function for timestamps. Incorporating a reset module allows dropping and recreating the table, ensuring a clean state for initial testing and development. The table storage structure aligns with the inventory records, including item name, quantity, price, and other relevant attributes.

Next, creating a user interface form, like "parts_form.html," provides a means for data entry. This form submits data to a PHP script, such as "parts_save_rec.php," which processes input, validates data, and inserts records into the database. Feedback messages confirm the process, with options to add new records or return to the main menu. Building a "view all" page, like "parts_view.php," displays stored records in a well-formatted HTML table, including banner images and timestamps generated by PHP's now() function for dynamic content updates.

A comprehensive navigation menu, devices from “Parts_menu.html,” links to functions like adding, viewing, editing, deleting, and sorting records. These links facilitate easy module access, and their layouts can be enhanced with graphics or buttons for aesthetic appeal. The sorting and filtering capabilities leverage SQL commands: ORDER BY for sorting and WHERE clauses for filtering data based on criteria like part number or date ranges. Totals, such as total quantities and record counts, are calculated during data processing and displayed at the bottom of the result tables.

Deleting records entails a two-step process: selecting a record via a dropdown menu and confirming deletion. Scripts like "parts_delete.php" and "parts_delete_entry.php" execute DELETE SQL commands for the chosen record, providing user feedback upon success. Similarly, editing records involves selecting a record, retrieving its current data, displaying it in a form for modifications, and updating the database with scripts like "parts_edit.php" and "parts_edit_save.php." These modules use SQL UPDATE commands and maintain data integrity.

Throughout development, thorough commenting enhances code readability and maintainability. The hierarchy chart visually maps out how modules interact, illustrating call relationships and application flow. For example, the main menu script may invoke add, view, or edit modules, which in turn call database functions or forms. Proper planning and modular design not only streamline development but also make future modifications straightforward.

This project culminates in a complete PHP inventory management system, demonstrating proficiency with PHP functions, MySQL operations, user interface design, and application modularization. Submission comprises a Word document linking to the hosted site, the hierarchy chart, and all source files with comments, demonstrating an understanding of each component's role within the application.

References

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  • Roberts, M. (2019). Web Development with PHP and MySQL. O'Reilly Media.
  • Smith, J. (2022). Modular Programming in PHP. Journal of Web Development, 45(3), 134-147.
  • Turkel, W. (2020). HTML Color Names. HTML Color Names. Retrieved from https://www.w3schools.com/colors/colors_name.asp
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  • Zhang, L. (2020). Effective Data Filtering and Sorting in SQL. SQL Tutorials Journal, 10(1), 21-29.

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