Efficient approach to PHP error logging?

Effective PHP error logging method: use error_log(): record error messages to the system log. Use PSR-3 Logger: Use a standardized logger interface to log different levels of log messages. Using Monolog: Leverage feature-rich libraries for log formatting, filtering, and output. Use Sentry: Automatically capture and report PHP errors and provide event monitoring services.

Efficient method of PHP error logging

In PHP development, error logging is crucial for debugging and troubleshooting . Logging error messages can help you quickly identify problems and take steps to resolve them. This article will introduce several effective ways to log PHP errors.

Using error_log()

This is the simplest method of PHP error logging. It writes error messages to the system log.

error_log("这是错误消息");

Using PSR-3 Logger

PSR-3 is a PHP standard that defines a logger interface. You can use this interface to log different levels of log messages.

use Psr\Log\LoggerInterface;
use Psr\Log\LogLevel;

class MyLogger implements LoggerInterface
{
    public function log($level, $message, array $context = [])
    {
        error_log($message);
    }
}

Using Monolog

Monolog is a popular PHP logging library that provides rich functionality including log formatting, filtering and output to various purposes place (e.g. files, databases, Slack, etc.).

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

$logger = new Logger('my-logger');
$logger->pushHandler(new StreamHandler('my-log.log', Logger::DEBUG));

$logger->debug('这是一个调试消息');

Using Sentry

Sentry is an error and event monitoring service that automatically captures and reports PHP errors.

require 'vendor/autoload.php';

\Sentry\init([
    'dsn' => 'YOUR_DSN',
]);

try {
    // 您的代码
} catch (\Exception $e) {
    \Sentry\captureException($e);
}

Practical Case

Suppose you have a simple PHP script that reads numbers from user input and performs mathematical operations on them. You want to log any errors that occur in your script.

<?php

// 获取用户输入
$input = readline("请输入一个数字：");

// 验证输入
if (!is_numeric($input)) {
    error_log("输入无效：$input");
    exit;
}

// 执行数学运算
$result = $input * 2;

// 输出结果
echo "结果：$result";

In this example, the error_log() function is used to log error messages for invalid input. By logging errors in a script, you can easily monitor errors and resolve issues.

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