What are some alternative frameworks or tools to consider for converting a PHP-based website into a mobile app?

Converting a PHP-based website into a mobile app involves creating a mobile application that can interact with the existing PHP backend. One approach is to use frameworks like React Native or Flutter to build a cross-platform mobile app that can communicate with the PHP backend through APIs. Another option is to use tools like PhoneGap or Apache Cordova to wrap the existing PHP website into a mobile app.

// Example PHP code snippet for creating APIs to communicate with a mobile app

<?php
// Sample API endpoint to retrieve data from the backend
if ($_SERVER['REQUEST_METHOD'] === 'GET') {
    // Connect to the database
    $conn = new mysqli('localhost', 'username', 'password', 'database');

    // Check connection
    if ($conn->connect_error) {
        die("Connection failed: " . $conn->connect_error);
    }

    // Query to retrieve data from the database
    $sql = "SELECT * FROM data_table";
    $result = $conn->query($sql);

    // Check if data is retrieved successfully
    if ($result->num_rows > 0) {
        // Output data as JSON
        header('Content-Type: application/json');
        echo json_encode($result->fetch_all(MYSQLI_ASSOC));
    } else {
        // Output error message if no data is found
        echo "No data found";
    }

    // Close database connection
    $conn->close();
}
?>