Ví dụ mã JSON sang CSV trong PHP: Hướng dẫn đầy đủ

composer require aspose-barcode-cloud

use Aspose\BarCode\Cloud\Configuration;
use Aspose\BarCode\Cloud\BarCodeApi;

$appSid = 'YOUR_APP_SID';
$appKey = 'YOUR_APP_KEY';
$config = new Configuration($appSid, $appKey);
$apiInstance = new BarCodeApi($config);

$inputHandle  = fopen($inputJsonPath, 'rb');
$outputHandle = fopen($outputCsvPath, 'wb');

while (($line = fgets($inputHandle)) !== false) {
    $record = json_decode(trim($line), true);
    $barcodeValue = $record['id'] ?? '';
    $barcodeRequest = new GenerateBarcodeRequest([
        'type'   => $barcodeFormat,
        'text'   => (string)$barcodeValue,
        'format' => 'PNG',
        'resolutionX' => 300,
        'resolutionY' => 300
    ]);
    $barcodeResponse = $apiInstance->generateBarcode($barcodeRequest);
    $record['barcode_image'] = base64_encode($barcodeResponse);
    // Write header once, then rows
    // ...
}

fclose($inputHandle);
fclose($outputHandle);
array_map('unlink', glob($barcodeTempDir . '/*.png'));
rmdir($barcodeTempDir);

<?php
declare(strict_types=1);

// Autoload Composer dependencies (Aspose.BarCode Cloud SDK)
require __DIR__ . '/vendor/autoload.php';

use Aspose\BarCode\Cloud\Configuration;
use Aspose\BarCode\Cloud\BarCodeApi;
use Aspose\BarCode\Cloud\Model\GenerateBarcodeRequest;

// -------------------- Configuration --------------------
$appSid = 'YOUR_APP_SID';
$appKey = 'YOUR_APP_KEY';
$config = new Configuration($appSid, $appKey);
$apiInstance = new BarCodeApi($config);

// -------------------- Settings --------------------
$inputJsonPath   = __DIR__ . '/data/input.json';   // JSON source (one object per line)
$outputCsvPath   = __DIR__ . '/data/output.csv';   // Resulting CSV
$delimiter       = ';';                           // Custom CSV delimiter
$encoding        = 'UTF-8';                       // Target CSV encoding
$barcodeFormat   = 'Code128';                     // Barcode symbology
$barcodeField    = 'id';                          // JSON field to turn into barcode
$barcodeTempDir  = __DIR__ . '/temp_barcodes';    // Temporary folder for barcode images

// Ensure temporary directory exists
if (!is_dir($barcodeTempDir)) {
    mkdir($barcodeTempDir, 0777, true);
}

// -------------------- Open Files --------------------
$inputHandle  = fopen($inputJsonPath, 'rb');
if ($inputHandle === false) {
    throw new RuntimeException("Unable to open input JSON file.");
}
$outputHandle = fopen($outputCsvPath, 'wb');
if ($outputHandle === false) {
    fclose($inputHandle);
    throw new RuntimeException("Unable to open output CSV file.");
}

// Write UTF-8 BOM for Excel compatibility
fwrite($outputHandle, "\xEF\xBB\xBF");

// -------------------- Process JSON --------------------
$headerWritten = false;
while (($line = fgets($inputHandle)) !== false) {
    $line = trim($line);
    if ($line === '' || $line === '[' || $line === ']') {
        continue; // skip empty lines or array brackets
    }
    // Remove trailing commas if present (common in pretty‑printed arrays)
    $line = rtrim($line, ',');
    $record = json_decode($line, true);
    if (json_last_error() !== JSON_ERROR_NONE) {
        continue; // skip malformed lines
    }

// Generate barcode image for the selected field
    $barcodeValue = $record[$barcodeField] ?? '';
    $barcodeRequest = new GenerateBarcodeRequest([
        'type' => $barcodeFormat,
        'text' => (string)$barcodeValue,
        'format' => 'PNG',
        'resolutionX' => 300,
        'resolutionY' => 300
    ]);
    try {
        $barcodeResponse = $apiInstance->generateBarcode($barcodeRequest);
        $barcodeFilePath = $barcodeTempDir . '/' . uniqid('barcode_', true) . '.png';
        file_put_contents($barcodeFilePath, $barcodeResponse);
        // Store relative path (or base64) in CSV; here we use base64 to keep CSV self‑contained
        $barcodeBase64 = base64_encode($barcodeResponse);
        $record['barcode_image'] = $barcodeBase64;
    } catch (Exception $e) {
        $record['barcode_image'] = '';
    }

// Prepare CSV row with proper UTF‑8 encoding
    $csvRow = [];
    foreach ($record as $value) {
        if (is_array($value) || is_object($value)) {
            $value = json_encode($value, JSON_UNESCAPED_UNICODE);
        }
        $csvRow[] = mb_convert_encoding((string)$value, $encoding, 'UTF-8');
    }

// Write header once
    if (!$headerWritten) {
        $header = array_keys($record);
        fputcsv($outputHandle, $header, $delimiter);
        $headerWritten = true;
    }

// Write data row
    fputcsv($outputHandle, $csvRow, $delimiter);
}

// -------------------- Cleanup --------------------
fclose($inputHandle);
fclose($outputHandle);

// Optionally delete temporary barcode files
array_map('unlink', glob($barcodeTempDir . '/*.png'));
rmdir($barcodeTempDir);

curl -X POST "https://api.aspose.cloud/connect/token" \
     -H "Content-Type: application/x-www-form-urlencoded" \
     -d "grant_type=client_credentials&client_id=YOUR_CLIENT_ID&client_secret=YOUR_CLIENT_SECRET"

curl -X PUT "https://api.aspose.cloud/v3.0/barcode/storage/file/input.json" \
     -H "Authorization: Bearer YOUR_ACCESS_TOKEN" \
     -H "Content-Type: application/json" \
     --data-binary @data/input.json

curl -X POST "https://api.aspose.cloud/v3.0/barcode/generate" \
     -H "Authorization: Bearer YOUR_ACCESS_TOKEN" \
     -H "Content-Type: application/json" \
     -d '{
           "type":"Code128",
           "text":"12345",
           "format":"PNG",
           "resolutionX":300,
           "resolutionY":300
         }' \
     -o temp/barcode_12345.png

curl -X GET "https://api.aspose.cloud/v3.0/barcode/storage/file/output.csv" \
     -H "Authorization: Bearer YOUR_ACCESS_TOKEN" \
     -o data/output.csv

composer require aspose-barcode-cloud