#Singleton Single object instance during the runtime or at any time during the execution of the application eg. Database connection, session
#Inheritance extends SuperClassName
parent::__construct
#Magic methods __get() __set() __isset() __unset() __sleep() - Serialize object __wake() - Unseriazlie object
#Traits trait TraitName // Trait defination
use TraitName // Usage in classes
use TraitName { methodName or propertyName as protected/private; ...}
#Abstract abstract class ClassName // Defination Abstract Classes cannot be instatiated Abstract Classes Serve as a superclass defination / template Foundation / Starting point for a class Abstract Methods No implementation Subclass must have the implementation If any method is marked as abstract the class should also be abstract
#Interfaces interface InterfaceName // Defination Base class implements InterfaceName
#Type hinting Strongly typed varibles - int string float boolean etc declare(strict_types=1); // Add this on top of file to implement strong type hinting defining functionName(string $var) : string // : string is return type
ALTER TABLE oophp.am_users
CHANGE createdAt createdAt TIMESTAMP DEFAULT NOW(),
CHANGE updatedAt updatedAt TIMESTAMP DEFAULT NOW() ON UPDATE NOW();