Are there specific best practices or guidelines to follow when upgrading PHP versions, as mentioned in the PHP manual for version migrations?

When upgrading PHP versions, it is important to follow best practices and guidelines outlined in the PHP manual for version migrations to ensure a smooth transition and avoid any compatibility issues with existing code. Some common recommendations include testing the code on a development environment before upgrading, checking for deprecated features in the new PHP version, and updating any outdated libraries or dependencies.

// Example code snippet for checking PHP version compatibility
if (version_compare(PHP_VERSION, '7.4.0') < 0) {
    echo 'Please upgrade to PHP 7.4 or higher.';
} else {
    // Code that is compatible with PHP 7.4 and higher
}