What are best practices for transferring PHP script files between different servers to ensure proper functionality and avoid missing files like pwd.dat.php?

When transferring PHP script files between different servers, it is important to ensure that all necessary files, including configuration files like pwd.dat.php, are also transferred to avoid any missing dependencies. One best practice is to create a deployment checklist to track all files that need to be transferred and verify their presence on the new server before testing the functionality of the PHP scripts.

// Example deployment checklist for transferring PHP script files
$files_to_transfer = [
    'index.php',
    'config.php',
    'functions.php',
    'pwd.dat.php'
];

// Verify all required files are present on the new server
foreach ($files_to_transfer as $file) {
    if (!file_exists($file)) {
        echo "Error: Missing file $file on the new server. Please ensure all necessary files are transferred.";
        exit;
    }
}

// Proceed with testing the functionality of the PHP scripts
// Additional code for testing the PHP scripts can be added here