setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
$customerId = $_POST['customerId'];
$totalAmount = $_POST['totalAmount'];
$tenure = min($_POST['tenure'], 18); // Limit tenure to 18 months
$firstEmiDate = $_POST['firstEmiDate'];
$emiAmount = $totalAmount / $tenure;
// Prepare the query dynamically
$columns = ['customerId', 'totalAmount', 'tenure', 'emiAmount', 'firstEmiDate'];
$placeholders = [':customerId', ':totalAmount', ':tenure', ':emiAmount', ':firstEmiDate'];
$params = [
':customerId' => $customerId,
':totalAmount' => $totalAmount,
':tenure' => $tenure,
':emiAmount' => $emiAmount,
':firstEmiDate' => $firstEmiDate
];
// Add EMI columns dynamically based on tenure
for ($i = 1; $i <= $tenure; $i++) {
$emiDate = date('Y-m-d', strtotime("+$i months", strtotime($firstEmiDate)));
$columns[] = "emi$i";
$columns[] = "emi{$i}Date";
$placeholders[] = ":emi$i";
$placeholders[] = ":emi{$i}Date";
$params[":emi$i"] = $emiAmount;
$params[":emi{$i}Date"] = $emiDate;
}
// Construct SQL statement
$sql = "INSERT INTO billing (" . implode(',', $columns) . ") VALUES (" . implode(',', $placeholders) . ")";
$stmt = $db->prepare($sql);
// Execute the query
if ($stmt->execute($params)) {
echo 'New EMI plan for ' . htmlspecialchars($customerId) . ' saved successfully.
';
} else {
echo 'Error executing statement: ' . $stmt->errorInfo()[2] . '
';
}
} catch (PDOException $e) {
echo 'Error: ' . $e->getMessage() . '
';
}
}
// Fetch customer details
$customer = null;
if (!empty($_GET['customerId'])) {
try {
$db = new PDO("mysql:host=$mariaServer;dbname=$mariaDb", $mariaUser, $mariaPass);
$db->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
$stmt = $db->prepare("SELECT * FROM customers WHERE customerId = :customerId");
$stmt->bindParam(':customerId', $_GET['customerId']);
if ($stmt->execute()) {
$customer = $stmt->fetch(PDO::FETCH_ASSOC);
}
} catch (PDOException $e) {
echo 'Error: ' . $e->getMessage() . '
';
}
}
?>
EMI Calculation
Name:
Mobile:
Customer not found.