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How to use Elasticsearch and PHP to build a user login and permission management system
Introduction:
In the current Internet era, user login and permission management are one of the necessary functions for every website or application . Elasticsearch is a powerful and flexible full-text search engine, while PHP is a widely used server-side scripting language. This article will introduce how to combine Elasticsearch and PHP to build a simple user login and permission management system, and provide code examples.
require 'vendor/autoload.php'; use ElasticsearchClientBuilder; $client = ClientBuilder::create()->build(); $params = [ 'index' => 'users', 'body' => [ 'mappings' => [ 'properties' => [ 'username' => ['type' => 'text'], 'password' => ['type' => 'text'], 'role' => ['type' => 'text'] ] ] ] ]; $response = $client->indices()->create($params); echo "Index created successfully.";
The above code creates an index named "users" and defines three fields: username (storage user name), password (storage password) and role (to store user roles).
require 'vendor/autoload.php'; use ElasticsearchClientBuilder; $client = ClientBuilder::create()->build(); function registerUser($username, $password, $role) { $params = [ 'index' => 'users', 'id' => $username, 'body' => [ 'username' => $username, 'password' => $password, 'role' => $role ] ]; $response = $client->index($params); echo "User registered successfully."; } function loginUser($username, $password) { $params = [ 'index' => 'users', 'body' => [ 'query' => [ 'bool' => [ 'must' => [ ['match' => ['username' => $username]], ['match' => ['password' => $password]] ] ] ] ] ]; $response = $client->search($params); if ($response['hits']['total']['value'] > 0) { echo "Login successful."; } else { echo "Invalid username or password."; } }
The above code defines two functions: registerUser (for user registration) and loginUser (for user login). The registerUser function stores the user's registration information into Elasticsearch's index, while the loginUser function checks whether the username and password provided by the user match the information stored in Elasticsearch.
require 'vendor/autoload.php'; use ElasticsearchClientBuilder; $client = ClientBuilder::create()->build(); function checkPermission($username, $permission) { $params = [ 'index' => 'users', 'body' => [ 'query' => [ 'bool' => [ 'must' => [ ['match' => ['username' => $username]], ['match' => ['role' => $permission]] ] ] ] ] ]; $response = $client->search($params); if ($response['hits']['total']['value'] > 0) { echo "User has permission."; } else { echo "User does not have permission."; } }
The above code defines a checkPermission function that checks whether a user has specific permissions. This function will retrieve the user's information stored in Elasticsearch and check whether their role matches the provided permissions.
Conclusion:
By combining Elasticsearch and PHP, we can easily build a powerful user login and permission management system. In this article, we walked through how to install Elasticsearch and create an index to store user and permission data. We also provide sample code for user registration, login, and permission management so that readers can better understand and apply these concepts. I hope this article is helpful to you, and I wish you a successful user login and permission management system!
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