How to implement Baidu Wenxinyiyan's sentence classification display in PHP development?

How to implement Baidu Wenxinyiyan’s sentence classification display in PHP development?

Baidu Wenxin Yiyan is a very popular sentence sharing website that collects various types of beautiful sentences. For websites that want to implement similar functions, how to classify and display sentences has become a problem that needs to be solved. In this article, I will introduce a method of using PHP to develop and implement Baidu Wenxin Yiyan's sentence classification display.

First, we need to prepare a database table for sentence classification. We can create a table named categories, which contains two fields: id represents the unique identifier of the category, and name represents the name of the category.

The following is a sample SQL statement to create a categories table:

CREATE TABLE `categories` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `name` varchar(255) NOT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;

Next, we need to prepare a database table for sentences. We can create a table named sentences, which contains three fields: id represents the unique identifier of the sentence, content represents the content of the sentence, category_id indicates the category to which the sentence belongs.

The following is a sample SQL statement to create the sentences table:

CREATE TABLE `sentences` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `content` varchar(255) NOT NULL,
  `category_id` int(11) NOT NULL,
  PRIMARY KEY (`id`),
  CONSTRAINT `fk_sentences_categories` FOREIGN KEY (`category_id`) REFERENCES `categories` (`id`) ON DELETE CASCADE
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;

Next, we can insert some test data into the database. First, insert some classification data into the categories table, for example:

INSERT INTO `categories` (`name`) VALUES ('爱情');
INSERT INTO `categories` (`name`) VALUES ('友情');
INSERT INTO `categories` (`name`) VALUES ('励志');

Then, insert some sentence data into the sentences table, for example:

INSERT INTO `sentences` (`content`, `category_id`) VALUES ('爱情句子1', 1);
INSERT INTO `sentences` (`content`, `category_id`) VALUES ('爱情句子2', 1);
INSERT INTO `sentences` (`content`, `category_id`) VALUES ('友情句子1', 2);
INSERT INTO `sentences` (`content`, `category_id`) VALUES ('友情句子2', 2);
INSERT INTO `sentences` (`content`, `category_id`) VALUES ('励志句子1', 3);
INSERT INTO `sentences` (`content`, `category_id`) VALUES ('励志句子2', 3);

After completing the data preparation, we can start writing PHP code to implement the classification display function. First, we need to connect to the MySQL database.

<?php

$host = 'localhost';
$db = 'your_database_name';
$user = 'your_username';
$password = 'your_password';

$dsn = "mysql:host=$host;dbname=$db;charset=utf8mb4";

try {
    $pdo = new PDO($dsn, $user, $password);
    $pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
} catch (PDOException $e) {
    echo 'Connection failed: ' . $e->getMessage();
    exit;
}

Next, we can query the database to obtain all categories and sentences under each category.

<?php

$sql = 'SELECT * FROM `categories`';
$categories = $pdo->query($sql)->fetchAll(PDO::FETCH_ASSOC);

foreach ($categories as $category) {
    echo '<h2>' . $category['name'] . '</h2>';
    
    $sql = 'SELECT * FROM `sentences` WHERE `category_id` = ' . $category['id'];
    $sentences = $pdo->query($sql)->fetchAll(PDO::FETCH_ASSOC);
    
    echo '<ul>';
    foreach ($sentences as $sentence) {
        echo '<li>' . $sentence['content'] . '</li>';
    }
    echo '</ul>';
}

The above code outputs the category name and sentence content in HTML format, realizing the function of category display.

Through the above code examples, we can realize the sentence classification display function of Baidu Wenxinyiyan. This is just a simple example, you can further extend and optimize it according to your needs.

To sum up, by creating a database table, inserting test data, and combining PHP code for database query and classification display, we can achieve a sentence classification display function similar to Baidu Wenxin Yiyan. Hope this article can be helpful to you!

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