Configuration of PHP logging and monitoring

Configuration of PHP logging and monitoring is critical to application stability. Using Monolog to record events, Sentry to analyze errors, and Prometheus to monitor metric data allows developers to quickly diagnose problems and improve application performance.

Configuration of PHP Logging and Monitoring

Logging and monitoring are critical to any modern PHP application. By logging events, errors, and performance data, you can quickly diagnose problems and improve application stability.

Using Monolog

Monolog is a popular PHP logging library that provides the flexibility of logging to a variety of targets (e.g. files, databases, mail servers). Configuring Monolog is easy:

use Monolog\Logger;
use Monolog\Handler\StreamHandler;

// 创建一个记录器
$logger = new Logger('my_app');

// 创建一个文件处理程序
$streamHandler = new StreamHandler('app.log');

// 将处理程序添加到记录器
$logger->pushHandler($streamHandler);

// 记录一条消息
$logger->info('Application started');

Using Sentry

Sentry is a managed logging and monitoring service that provides in-depth analysis of errors and exceptions. To use Sentry, you need to create an account and obtain a DSN:

composer require sentry/sentry

Configuring Sentry:

use Sentry\ClientBuilder;

// 创建一个 Sentry 客户端
$client = ClientBuilder::create()
    ->setDsn('YOUR_DSN')
    ->build();

// 记录一个异常
try {
    throw new Exception('This is an exception');
} catch (Exception $e) {
    $client->captureException($e);
}

Using Prometheus

Prometheus is an open source monitoring system that allows you to collect and visualizing application metric data. To install Prometheus, run the following command:

curl -LO https://github.com/prometheus/node_exporter/releases/download/v1.4.0/node_exporter-1.4.0.linux-amd64.tar.gz
tar xzf node_exporter-1.4.0.linux-amd64.tar.gz

In your PHP application, use the Prometheus PHP SDK to log metrics data:

use Prometheus\CollectorRegistry;
use Prometheus\Gauge;

// 创建一个收集器注册表
$registry = new CollectorRegistry;

// 创建一个度量
$gauge = new Gauge('my_app_requests', 'Number of requests', ['code']);

// 增加度量值
$gauge->inc(['200']);

By visiting http://localhost :9100/metrics You can view Prometheus metrics.

Practical case

In an e-commerce application, the following configuration can be used to log errors, performance events, and business events:

• Use Monolog to integrate key applications Events are logged to a file.
• Use Sentry to record and analyze exceptions.
• Use Prometheus to track application request count, database query time, and API call duration.

These configurations ensure application stability and performance and allow developers to quickly identify and resolve issues.

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