feat: refactor into php for mrbs page

php/config.php

@@ -0,0 +1,28 @@
+<?php
+/**
+ * Configuration file for SemapForm PHP Application
+ * 
+ * Copy this file and adjust values for your environment.
+ * For production, consider loading from environment variables or a .env file
+ */
+
+// Error reporting (set to 0 in production)
+error_reporting(E_ALL);
+ini_set('display_errors', 1);
+
+// Email configuration
+define('MAIL_ENABLED', getenv('MAIL_ENABLED') !== false ? filter_var(getenv('MAIL_ENABLED'), FILTER_VALIDATE_BOOLEAN) : true);
+define('SMTP_HOST', getenv('SMTP_HOST') ?: 'smtp.ph-freiburg.de');
+define('SMTP_PORT', getenv('SMTP_PORT') ?: 465);
+define('SMTP_ENCRYPTION', 'ssl'); // 'ssl' or 'tls' or '' for none
+define('SMTP_USERNAME', getenv('MAIL_USERNAME') ?: '');
+define('SMTP_PASSWORD', getenv('MAIL_PASSWORD') ?: '');
+define('MAIL_FROM', getenv('MAIL_FROM') ?: 'alexander.kirchner@ph-freiburg.de');
+define('MAIL_TO', getenv('MAIL_TO') ?: 'semesterapparate@ph-freiburg.de');
+
+// Application settings
+define('BASE_PATH', __DIR__);
+define('STATIC_PATH', '/static');
+
+// Email regex pattern
+define('EMAIL_REGEX', '/^[^@\s]+@[^@\s]+\.[^@\s]+$/');