nano-pro/env_loader.php

<?php
/**
 * Environment Variable Loader
 * Parses .env file and sets environment variables
 */

function loadEnvFile($path = null) {
    // Default to .env file in same directory
    $path = $path ?? __DIR__ . '/.env';

    // Check if .env file exists
    if (!file_exists($path)) {
        error_log("Warning: .env file not found at: $path");
        return false;
    }

    // Read file line by line
    $lines = file($path, FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES);

    if ($lines === false) {
        error_log("Error: Could not read .env file at: $path");
        return false;
    }

    foreach ($lines as $line) {
        // Skip comments
        if (strpos(trim($line), '#') === 0) {
            continue;
        }

        // Parse KEY=VALUE format
        if (strpos($line, '=') !== false) {
            list($key, $value) = explode('=', $line, 2);

            // Trim whitespace
            $key = trim($key);
            $value = trim($value);

            // Remove surrounding quotes if present
            if (preg_match('/^(["\'])(.*)\1$/', $value, $matches)) {
                $value = $matches[2];
            }

            // Set environment variable
            putenv("$key=$value");
            $_ENV[$key] = $value;
            $_SERVER[$key] = $value;
        }
    }

    return true;
}

// Auto-load .env on include
loadEnvFile();