Environment-Based Error Configuration
Configuring error reporting based on your environment is a critical part of secure and maintainable PHP development. During development, you want to see all errors, warnings, and notices right away so you can fix them quickly. However, in a production environment, exposing detailed error messages to users is a security risk. Attackers could use this information to exploit vulnerabilities, and users may be confused or alarmed by technical details. Instead, production servers should log errors for later review by developers, while displaying only generic messages to users. This approach helps you catch problems early during development, while keeping your live site secure and professional.
index.php
12345678910111213141516171819<?php // Define environment: 'development' or 'production' define('ENVIRONMENT', getenv('APP_ENV') ?: 'development'); if (ENVIRONMENT === 'development') { // Show all errors in development error_reporting(E_ALL); ini_set('display_errors', '1'); ini_set('log_errors', '0'); } else { // Hide errors from users and log them in production error_reporting(E_ALL); ini_set('display_errors', '0'); ini_set('log_errors', '1'); ini_set('error_log', __DIR__ . '/php-error.log'); } // Example error for demonstration echo $undefined_variable;
In the code above, the application checks an environment variable or constant to determine if it is running in development or production. In development mode, all errors are displayed directly in the browser, making it easier to spot and fix issues as you build your application. Logging is turned off to avoid cluttering log files with frequent changes. In production mode, error messages are hidden from users by disabling display_errors, but all errors are still reported and written to a secure log file using log_errors and error_log. This ensures that sensitive information about your application or server is never shown to visitors, while giving you the information you need as a developer to investigate problems. Following these best practices helps protect your application from attackers and provides a smoother experience for your users.
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Configuring error reporting based on your environment is a critical part of secure and maintainable PHP development. During development, you want to see all errors, warnings, and notices right away so you can fix them quickly. However, in a production environment, exposing detailed error messages to users is a security risk. Attackers could use this information to exploit vulnerabilities, and users may be confused or alarmed by technical details. Instead, production servers should log errors for later review by developers, while displaying only generic messages to users. This approach helps you catch problems early during development, while keeping your live site secure and professional.
index.php
12345678910111213141516171819<?php // Define environment: 'development' or 'production' define('ENVIRONMENT', getenv('APP_ENV') ?: 'development'); if (ENVIRONMENT === 'development') { // Show all errors in development error_reporting(E_ALL); ini_set('display_errors', '1'); ini_set('log_errors', '0'); } else { // Hide errors from users and log them in production error_reporting(E_ALL); ini_set('display_errors', '0'); ini_set('log_errors', '1'); ini_set('error_log', __DIR__ . '/php-error.log'); } // Example error for demonstration echo $undefined_variable;
In the code above, the application checks an environment variable or constant to determine if it is running in development or production. In development mode, all errors are displayed directly in the browser, making it easier to spot and fix issues as you build your application. Logging is turned off to avoid cluttering log files with frequent changes. In production mode, error messages are hidden from users by disabling display_errors, but all errors are still reported and written to a secure log file using log_errors and error_log. This ensures that sensitive information about your application or server is never shown to visitors, while giving you the information you need as a developer to investigate problems. Following these best practices helps protect your application from attackers and provides a smoother experience for your users.
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