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7- Cheat Sheet / roundup

Keyword / Operator Use
class Used to create a class
new Used to instantiate and object from a class
-> Used to referance a property or method of an object
EX: $camry->price, the whole string can be assigned a value or read from anywhere if the property price is public
$this Used to referance properties from within an object (Defined in the class)
__construct
the function that is executed when an object is instantiated, can be passed arguments by passing them to the class name in the new statement
extends

used within a clas declaration to indicate that this is a subclass
class car extends vehicle

parent:: the keyword parent followed by the scope operator is escaping the curent scope (The class we are in) to the parent class's scope
Properties and method types
Public It is like a global variable, Anyone can access it from anywhere in your code, We just write $camry->price and it will print the price
Private Only from within the enclosing class, this one is most restrictive
Protected From within the enclosing class and from subclasses using parent::



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