What are the efficient text databases in PHP?

php High-efficiency text databases include SQLite, Redis and MongoDB, etc. Detailed introduction: 1. SQLite is an embedded relational database. It stores data in the form of files and does not require an independent server process. SQLite is widely used in PHP. It provides efficient data storage and retrieval capabilities. Supporting common SQL syntax and transaction operations, SQLite is small, fast, reliable and easy to integrate, and is suitable for small projects or applications that require single-user access; 2. Redis, etc.

The operating system of this tutorial: Windows10 system, PHP version 8.1.3, DELL G3 computer.

In PHP, there are several efficient text databases to choose from that provide lightweight, fast and easy-to-use solutions. Several common high-efficiency text databases will be introduced below.

1. SQLite:

SQLite is an embedded relational database that stores data in the form of files and does not require an independent server process. SQLite is widely used in PHP. It provides efficient data storage and retrieval capabilities and supports common SQL syntax and transaction operations. SQLite is small, fast, reliable and easy to integrate, making it suitable for small projects or applications that require single-user access.

Using SQLite can be operated through PHP's SQLite extension or PDO extension. The following is an example of using SQLite:

// 连接到SQLite数据库
$db = new PDO('sqlite:/path/to/database.db');
// 创建表
$db->exec("CREATE TABLE users (id INTEGER PRIMARY KEY, name TEXT, email TEXT)");
// 插入数据
$db->exec("INSERT INTO users (name, email) VALUES ('John', 'john@example.com')");
// 查询数据
$result = $db->query("SELECT * FROM users");
foreach ($result as $row) {
    echo $row[&#39;name&#39;] . &#39; - &#39; . $row[&#39;email&#39;] . &#39;<br>&#39;;
}
// 关闭数据库连接
$db = null;

2. Redis:

Redis is a memory-based key-value storage database that provides high-performance data reading and writing capabilities and rich data structure support. Redis supports persistent storage and can save data to disk to prevent data loss. Redis also provides a wealth of commands and functions, such as publish/subscribe, transactions, and Lua scripts. In PHP, you can use the Redis extension or the Predis library to interact with Redis.

The following is an example using Redis:

// 连接到Redis服务器
$redis = new Redis();
$redis->connect('127.0.0.1', 6379);
// 设置键值对
$redis->set('name', 'John');
$redis->set('age', 30);
// 获取键值对
$name = $redis->get('name');
$age = $redis->get('age');
echo $name . ' - ' . $age;
// 关闭Redis连接
$redis->close();

3. MongoDB:

MongoDB is a document-oriented NoSQL database that is stored in BSON (Binary JSON) format data. MongoDB has high performance, scalability and flexible data model, suitable for large-scale data storage and complex queries. In PHP, you can use the MongoDB extension or the MongoDB PHP library to interact with MongoDB.

The following is an example of using MongoDB:

// 连接到MongoDB服务器
$manager = new MongoDB\Driver\Manager("mongodb://localhost:27017");
// 选择数据库和集合
$database = "mydb";
$collection = "users";
// 插入文档
$document = ['name' => 'John', 'age' => 30];
$bulk = new MongoDB\Driver\BulkWrite;
$bulk->insert($document);
$manager->executeBulkWrite("$database.$collection", $bulk);
// 查询文档
$filter = ['name' => 'John'];
$query = new MongoDB\Driver\Query($filter);
$cursor = $manager->executeQuery("$database.$collection", $query);
foreach ($cursor as $document) {
    echo $document->name . &#39; - &#39; . $document->age . &#39;<br>&#39;;
}

In addition to the databases mentioned above, there are other efficient text databases to choose from, such as Berkeley DB, LevelDB, etc. Based on specific needs and project characteristics, choosing an appropriate text database can improve the efficiency of data storage and retrieval, and improve application performance and user experience.

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