QA
Beginner LevelPHP 8+

How do you configure error_reporting() and display_errors in development versus production environments?

❓ Interview Prompt: Compare error logging configurations: displaying errors in local development vs logging errors to disk in production.

Managing error reporting settings correctly is essential for developer productivity and production security.

1. Local Development Settings:

Show all errors, warnings, and notices on screen immediately to catch bugs:

•
'error_reporting(E_ALL);'
•
'ini_set("display_errors", "1");'

2. Production Environment Settings:

NEVER display raw PHP errors to users in production! Exposing file paths, database queries, and stack traces provides attackers with exploitation insights.

•
'ini_set("display_errors", "0");'
•
'ini_set("log_errors", "1");'
•
'ini_set("error_log", "/var/log/php/error.log");'

Code Implementation Example

php
<?php
// Production Environment Bootstrap Error Configuration
ini_set('display_errors', '0');       // Hide raw stack traces from end-users!
ini_set('display_startup_errors', '0');
ini_set('log_errors', '1');           // Log errors securely to disk file!
ini_set('error_log', '/var/log/app/php_errors.log');
error_reporting(E_ALL);                // Capture ALL errors in the log file
💡Secure production error configuration logging bugs to disk while hiding stack traces from users.
🎯 Interview Key Takeaway

In development, display all errors on screen; in production, hide display_errors and log errors to disk securely.

#error_reporting#display_errors#Security#Beginner
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