class Configuration {
// Define a static property with visibility control (private/protected/public)
private static string $environment = "production";
// A static method to access the private static property from within the class
public static function getEnvironment(): string {
// Use 'self::' to access static properties from inside class methods
return self::$environment;
}
// A static method to modify the static property
public static function setEnvironment(string $newEnv): void {
self::$environment = $newEnv;
}
}
// --- Example Usage ---
// 1. Accessing via a public static getter method
echo "Current Environment: " . Configuration::getEnvironment() . "\n";
// 2. Modifying via a public static setter method
Configuration::setEnvironment("staging");
echo "Updated Environment: " . Configuration::getEnvironment() . "\n";
/*
* Note on Public Static Properties:
* If a static property is declared as 'public', you can access it directly
* from outside the class using ClassName::$propertyName:
*
* class PublicConfig {
* public static string $appName = "MyService";
* }
* echo PublicConfig::$appName;
*/
/*
run:
Current Environment: production
Updated Environment: staging
*/
