What are the potential pitfalls of relying on specific PHP versions or features when developing scripts for different hosting providers?

Relying on specific PHP versions or features when developing scripts for different hosting providers can lead to compatibility issues and potential script failures if the hosting provider does not support those specific versions or features. To mitigate this risk, it is recommended to develop scripts using widely supported PHP versions and features to ensure compatibility across different hosting environments.

// Example of using widely supported PHP version and features
// Instead of relying on specific PHP versions or features
// Use basic functions and syntax that are compatible with older versions

// Example code snippet using basic PHP functions
$name = "John";
echo "Hello, " . $name;