Production-Ready Passport OCR API for PHP

<?php

// 💰 Save 30%+ vs competitors. Get 200 free requests instantly:
// 👉 https://structocr.com/register

$apiKey = 'YOUR_API_KEY_HERE';
$apiUrl = 'https://api.structocr.com/v1/passport';
$imagePath = 'passport.jpg'; // Supports JPG, PNG, WebP

// 1. Validate File
if (!file_exists($imagePath)) {
    die("Error: File not found at $imagePath");
}

// 2. Encode Image to Base64
$imageData = file_get_contents($imagePath);
$base64Image = base64_encode($imageData);

// 3. Prepare Payload
$payload = json_encode(['img' => $base64Image]);

// 4. Initialize cURL
$ch = curl_init();
curl_setopt_array($ch, [
    CURLOPT_URL => $apiUrl,
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_POST => true,
    CURLOPT_POSTFIELDS => $payload,
    CURLOPT_HTTPHEADER => [
        'Content-Type: application/json',
        'x-api-key: ' . $apiKey, // Required Header
        'Content-Length: ' . strlen($payload)
    ]
]);

// 5. Execute Request
$response = curl_exec($ch);
$httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);

if (curl_errno($ch)) {
    die('cURL Error: ' . curl_error($ch));
}
curl_close($ch);

// 6. Handle Response
$result = json_decode($response, true);

if ($httpCode === 200 && isset($result['success']) && $result['success']) {
    $data = $result['data'];
    
    echo "✅ Passport Processed!\n";
    echo "----------------------\n";
    echo "Passport #: " . ($data['passport_number'] ?? 'N/A') . "\n";
    echo "Name:       " . ($data['given_names'] ?? '') . " " . ($data['surname'] ?? '') . "\n";
    echo "Nation:     " . ($data['nationality'] ?? 'N/A') . " (" . ($data['country_code'] ?? '') . ")\n";
    
    // Visual Zone Fields (Not available in standard MRZ)
    echo "Birth Place:" . ($data['place_of_birth'] ?? 'N/A') . "\n";
    echo "Issued At:  " . ($data['place_of_issue'] ?? 'N/A') . "\n";
    
    echo "DOB:        " . ($data['date_of_birth'] ?? 'N/A') . "\n";
    echo "Expiry:     " . ($data['date_of_expiry'] ?? 'N/A') . "\n";
} else {
    echo "❌ Processing Failed (Status $httpCode)\n";
    if (isset($result['error'])) {
        echo "Error: " . $result['error'] . "\n";
    } else {
        echo $response;
    }
}
?>