Alat Penukar Mata Wang berasaskan PHP yang membolehkan pengguna menukar mata wang menggunakan kadar pertukaran masa nyata yang diambil daripada API luaran. Alat ini dibina dengan PHP, HTML, jQuery, AJAX, JSON, Bootstrap, CSS dan MySQL. Aplikasi ini direka untuk menyediakan penukaran mata wang yang tepat dan memaparkan hasil dalam antara muka yang mesra pengguna.
Topik:php, mysql, blog, ajax, bootstrap, jquery, css, penukaran mata wang, integrasi api luaran, integrasi api
simple-currency-converter/ │ ├── index.html ├── db/ │ └── database.sql ├── include/ │ ├── config.sample.php │ └── db.php ├── assets/ │ ├── css/ │ │ └── style.css │ └── js/ │ │ └── script.js ├── src/ │ ├── fetch-rates.php │ ├── convert.php │ └── get-currencies.php ├── README.md └── .gitignore
db/database.sql:
CREATE TABLE `exchange_rates` ( `id` int(11) NOT NULL AUTO_INCREMENT, `currency` varchar(3) NOT NULL, `rate` decimal(10, 4) NOT NULL, `timestamp` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP, PRIMARY KEY (`id`) ) ENGINE=InnoDB DEFAULT CHARSET=utf8; CREATE TABLE currencies ( id INT AUTO_INCREMENT PRIMARY KEY, code VARCHAR(3) NOT NULL, name VARCHAR(50) NOT NULL ); INSERT INTO currencies (code, name) VALUES ('USD', 'United States Dollar'), ('EUR', 'Euro'), ('GBP', 'British Pound'), ('JPY', 'Japanese Yen'), ('BDT', 'Bangladesh Taka'), ('AUD', 'Australian Dollar');
Tetapan konfigurasi (include/config.sample.php)
Mewujudkan sambungan pangkalan data (termasuk/db.php)
PDO::ERRMODE_EXCEPTION, PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC, PDO::ATTR_EMULATE_PREPARES => false, ]; // Create a new PDO instance try { $pdo = new PDO($dsn, DB_USER, DB_PASS, $options); $pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION); // Set error mode to exception } catch (PDOException $e) { echo 'Connection failed: ' . $e->getMessage(); // Display error message if connection fails } ?>
Struktur HTML (index.html)
Pengendalian AJAX (aset/js/script.js)
$(document).ready(function() { // Fetch exchange rates and populate the select options $.ajax({ url: 'src/fetch-rates.php', method: 'GET', dataType: 'json', success: function(data) { if (data.status === 'success') { populateCurrencyOptions(); } } }); function populateCurrencyOptions() { $.ajax({ url: 'src/get-currencies.php', method: 'GET', dataType: 'json', success: function(data) { if (data.status === 'success') { var options = ''; console.log(data.currencies) $.each(data.currencies, function(index, currency) { options += ''; }); $('#from_currency, #to_currency').html(options); } } }); } // Handle form submission $('#currency-form').on('submit', function(e) { e.preventDefault(); var amount = $('#amount').val(); var fromCurrency = $('#from_currency').val(); var toCurrency = $('#to_currency').val(); $.ajax({ url: 'src/convert.php', method: 'POST', data: { amount: amount, from_currency: fromCurrency, to_currency: toCurrency }, dataType: 'json', success: function(data) { if (data.status === 'success') { $('#result').html('Converted Amount: ' + data.converted_amount).show(); } else { $('#result').html(data.message).show(); } } }); }); });
Penjelasan:
Ambil Kadar Pertukaran (src/fetch-rates.php)
prepare("TRUNCATE TABLE exchange_rates"); $stmt->execute(); // Insert new rates $stmt = $pdo->prepare("INSERT INTO exchange_rates (currency, rate) VALUES (:currency, :rate)"); foreach ($data['rates'] as $currency => $rate) { $stmt->execute(['currency' => $currency, 'rate' => $rate]); } echo json_encode(['status' => 'success', 'message' => 'Exchange rates updated successfully.']); } else { echo json_encode(['status' => 'error', 'message' => 'Failed to fetch exchange rates.']); } ?>
Penjelasan:
Logik Penukaran Mata Wang (src/convert.php)
prepare("SELECT rate FROM exchange_rates WHERE currency = :currency"); $stmt->execute(['currency' => $fromCurrency]); $fromRate = $stmt->fetchColumn(); $stmt->execute(['currency' => $toCurrency]); $toRate = $stmt->fetchColumn(); if ($fromRate && $toRate) { // Convert the amount $convertedAmount = ($amount / $fromRate) * $toRate; echo json_encode(['status' => 'success', 'converted_amount' => number_format($convertedAmount, 2)]); } else { echo json_encode(['status' => 'error', 'message' => 'Conversion failed.']); } ?>
Penjelasan:
Nama dan kod Mata Wang (src/get-currencies.php)
query('SELECT code, name FROM currencies'); $data = []; while ($row = $stmt->fetch()) { $data[] = ['code' => $row['code'], 'name' => $row['name']]; } echo json_encode(['status' => 'success', 'currencies' => $data]); ?>
Penjelasan:
Penggayaan CSS (aset/css/style.css)
body { padding-top: 50px; } .container { max-width: 600px; margin: 0 auto; }
Persediaan ini menyediakan alat penukar mata wang asas tetapi berfungsi dengan ulasan dan penjelasan terperinci. Pastikan anda melaraskan URL API dan tetapan pangkalan data mengikut keperluan anda. Untuk kegunaan dunia sebenar, anda juga mungkin mahu menambah pengendalian ralat dan langkah keselamatan.
Menyambung Pautan
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