<?php

function fetchData() {
    // API configuration
    $baseUrl = 'https://exchangegrid.api.mapwale.com/v1';
    $params = array(
        'region' => 'YOUR_REGION'  // Replace with actual region value
    );
    $queryParams = {"show":"all","list":"USD,INR,JPY,BTC,DOGE"};
    
    try {
        // Build URL
        $url = $baseUrl;
        foreach (["region"] as $param) {
            $url .= '/' . urlencode($params[$param]);
        }
        $url .= '?' . http_build_query($queryParams);
        
        // Initialize cURL
        $ch = curl_init();
        
        // Set cURL options
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($ch, CURLOPT_HTTPHEADER);
        
        if ('GET' === 'POST' || 'GET' === 'PUT') {
            curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode({}));
            curl_setopt($ch, CURLOPT_CUSTOMREQUEST, 'GET');
        }
        
        // Execute request
        $response = curl_exec($ch);
        $httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
        
        // Check for errors
        if ($httpCode >= 400) {
            throw new Exception("HTTP Error: " . $httpCode);
        }
        
        curl_close($ch);
        return json_decode($response, true);
    } catch (Exception $e) {
        echo "Error: " . $e->getMessage();
        return null;
    }
}

// Example usage
$result = fetchData();
echo json_encode($result, JSON_PRETTY_PRINT);