What potential pitfalls should PHP developers be aware of when transferring their website to a new hosting provider?

Potential pitfalls that PHP developers should be aware of when transferring their website to a new hosting provider include compatibility issues with PHP versions, differences in server configurations, and potential data loss during the migration process. To mitigate these risks, developers should thoroughly test their website on the new hosting environment before making it live.

// Example code snippet for checking PHP version compatibility
if (version_compare(PHP_VERSION, '7.2.0') < 0) {
    echo "This website requires PHP version 7.2.0 or higher.";
    // Handle the error or display a message to the user
}