


Background of the project
php Editor Xinyi will take you to explore the CodeIgniter project case in depth: a complete analysis from idea to implementation. This article will introduce in detail how to use the CodeIgniter framework to develop a project, from the initial idea to the final implementation, revealing the whole picture of project development for you, allowing you to easily master the key steps and techniques of project development.
- Book display: Displays all books sold on the website, including book title, author, price, inventory quantity and other information.
- Book Search: Allows users to search for books by title, author or ISBN number.
- Shopping Cart: Allows users to add purchased books to the shopping cart and calculate the total price.
- Order management: Allow users to view their orders, modify or cancel orders.
- Payment: Provides a variety of payment methods, including online payment and cash on delivery.
- Delivery: Provides a variety of delivery methods, including express delivery and postal service.
When choosing
to develop the framework, we considered the following points:
- The popularity and activity of the framework.
- Whether the
- learning curve of the framework is steep. Whether the framework provides good documentation and community support.
- Whether the framework can meet the project's performance and
- security requirements.
PHP CodeIgniter framework as the development framework of the project. CodeIgniter is a lightweight, high-performance php framework that has the following advantages:
- Learning curve is gentle.
- Documentation and community support are good.
- Be able to meet the performance and security requirements of the project.
Architecture
We adopt themvc (Model-View-Controller) architecture to design the code structure of the project. MVC is a commonly used software architecture pattern that separates the business logic, presentation layer and control logic of an application, making the code clearer and easier to understand, and easier to maintain and expand.
In our project, the model layer is responsible for interacting with thedatabase, obtaining or storing data from the database; the view layer is responsible for generating the content of the web page; the controller layer is responsible for processing User requests, calls the model layer to obtain or store data, and passes the data to the view layer to generate web pages.
CodeIn the implementation process of the project code, we mainly used the following technologies:
- CodeIgniter framework: as the development framework of the project.
- MysqlDatabase: as the database of the project.
- html, CSS and javascript: as front-end development technologies for web pages.
In the model layer, we create model classes that interact with the database. These model classes are responsible for obtaining or storing data from the database. For example, we created a Book model class that is responsible for obtaining or storing book information from the database.
class Book extends CI_Model { public function get_all_books() { $query = $this->db->get("books"); return $query->result_array(); } public function get_book_by_id($id) { $query = $this->db->get_where("books", array("id" => $id)); return $query->row_array(); } public function add_book($data) { $this->db->insert("books", $data); return $this->db->insert_id(); } public function update_book($id, $data) { $this->db->where("id", $id); $this->db->update("books", $data); return $this->db->affected_rows(); } public function delete_book($id) { $this->db->where("id", $id); $this->db->delete("books"); return $this->db->affected_rows(); } }In the view layer, we created the view file used to generate web page content. These view files are responsible for outputting data to the web page in the form of HTML. For example, we created a book_list.php view file responsible for displaying a list of all books on the website.
<!DOCTYPE html> <html> <head> <title>图书列表</title> </head> <body> <h1 id="图书列表">图书列表</h1> <ul> <?php foreach ($books as $book) { ?> <li> <?php echo $book["name"]; ?> - <?php echo $book["author"]; ?> - <?php echo $book["price"]; ?> 元 - <?php echo $book["stock"]; ?> 件 </li> <?php } ?> </ul> </body> </html>In the controller layer, we created the controller class for handling user requests. These controller classes are responsible for calling the model layer to obtain or store data, and passing the data to the view layer to generate web pages. For example, we created a BookController controller class that is responsible for handling user requests related to books.
class BookController extends CI_Controller { public function index() { $books = $this->Book->get_all_books(); $this->load->view("book_list", array("books" => $books)); } public function add() { $this->load->view("book_add"); } public function save() { $data = array( "name" => $this->input->post("name"), "author" => $this->input->post("author"), "price" => $this->input->post("price"), "stock" => $this->input->post("stock") ); $this->Book->add_book($data); redirect("book"); } public function edit($id) { $book = $this->Book->get_book_by_id($id); $this->load->view("book_edit", array("book" => $book)); } public function update($id) { $data = array( "name" => $this->input->post("name"), "author" => $this->input->post("author"), "price" => $this->input->post("price"), "stock" => $this->input->post("stock") ); $this->Book->update_book($id, $data); redirect("book"); } public function delete($id) { $this->Book->delete_book($id); redirect("book"); } }project outcome
By using the CodeIgniter framework, we successfully developed an online book sales website with complete functions, including book display, book search, shopping cart, order management, payment and delivery, etc.
After the website was launched, it was recognized by customers and received good market response. Website visits and sales are growing steadily, and our customers are very satisfied with our service.
Summarize
Through this project case, we introduced in detail how to use the PHP CodeIgniter framework to build a website, from idea to implementation, covering the project background, technology selection, project architecture, code implementation and project results. I hope this case can help readers better understand the usage and development process of the CodeIgniter framework.The above is the detailed content of php CodeIgniter project case: complete analysis from idea to implementation. For more information, please follow other related articles on the PHP Chinese website!

php把负数转为正整数的方法:1、使用abs()函数将负数转为正数,使用intval()函数对正数取整,转为正整数,语法“intval(abs($number))”;2、利用“~”位运算符将负数取反加一,语法“~$number + 1”。

实现方法:1、使用“sleep(延迟秒数)”语句,可延迟执行函数若干秒;2、使用“time_nanosleep(延迟秒数,延迟纳秒数)”语句,可延迟执行函数若干秒和纳秒;3、使用“time_sleep_until(time()+7)”语句。

php除以100保留两位小数的方法:1、利用“/”运算符进行除法运算,语法“数值 / 100”;2、使用“number_format(除法结果, 2)”或“sprintf("%.2f",除法结果)”语句进行四舍五入的处理值,并保留两位小数。

判断方法:1、使用“strtotime("年-月-日")”语句将给定的年月日转换为时间戳格式;2、用“date("z",时间戳)+1”语句计算指定时间戳是一年的第几天。date()返回的天数是从0开始计算的,因此真实天数需要在此基础上加1。

php判断有没有小数点的方法:1、使用“strpos(数字字符串,'.')”语法,如果返回小数点在字符串中第一次出现的位置,则有小数点;2、使用“strrpos(数字字符串,'.')”语句,如果返回小数点在字符串中最后一次出现的位置,则有。

方法:1、用“str_replace(" ","其他字符",$str)”语句,可将nbsp符替换为其他字符;2、用“preg_replace("/(\s|\ \;||\xc2\xa0)/","其他字符",$str)”语句。

php字符串有下标。在PHP中,下标不仅可以应用于数组和对象,还可应用于字符串,利用字符串的下标和中括号“[]”可以访问指定索引位置的字符,并对该字符进行读写,语法“字符串名[下标值]”;字符串的下标值(索引值)只能是整数类型,起始值为0。

在PHP中,可以利用implode()函数的第一个参数来设置没有分隔符,该函数的第一个参数用于规定数组元素之间放置的内容,默认是空字符串,也可将第一个参数设置为空,语法为“implode(数组)”或者“implode("",数组)”。


Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

Safe Exam Browser
Safe Exam Browser is a secure browser environment for taking online exams securely. This software turns any computer into a secure workstation. It controls access to any utility and prevents students from using unauthorized resources.

ZendStudio 13.5.1 Mac
Powerful PHP integrated development environment

SublimeText3 English version
Recommended: Win version, supports code prompts!

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools
