This article for you to share the next PHP Anti-serialization Vulnerability series of PHP serialization and anti-serialization principle of the relevant knowledge, there is a need for friends to learn from this.
0. Preface
The serialization and
This article mainly introduced the PHP custom serialization interface serializable usage, combined with the example form analysis serializable custom serialization interface concept, function, definition and use method, the need friend can refer to
PHP/** * Broker Mode * * Use a Mediation object to encapsulate a series of object interactions * so that objects do not need to explicitly reference each other to make them loosely coupled * and can independently change the interaction between them*/
What is polymorphism?Polymorphism (polymorphism) is a very long word, but it represents a very simple concept.
Polymorphism describes the different functions of classes in object-oriented programming patterns and the sharing of a common
I. INTRODUCTION:There is a barbecue stall on the side of the road, and a boss is responsible for barbecue food for the guests. If there are few guests, the boss can accurately remember everyone's requirements. As the number of guests increases, the
PHPAbstract classAbstract_class {Abstract Public functionPrimitive_operation1 (); Abstract Public functionPrimitive_operation2 (); Public functionTemplate_method () {Echo"This is the template_method"; $this-Primitive_operation1 ();
It must be said that interfaces and abstract classes do not seem to be able to instantiate both, and the parts that are not implemented are implemented by derived classes.They have a major difference:(1) Derived classes of abstract classes can be
All engineering problems in the field of software development are ultimately derived from one problem: What if the code size is large?For CSS, the core issue caused by the increase in code size is naming conflicts.The methodology of resolving naming
1Iteratorextendstraversable {2 /*Methods*/3 Abstract Public Mixed Current(void)4 Abstract PublicScalarKey(void)5 Abstract PublicvoidNext(void)6 Abstract PublicvoidRewind(void)7 Abstract Public Booleanvalid (void)8}Therefore, for this question,
The proxy mode provides a proxy for other objects to control access to this object. In some cases, a client does not want or cannot directly reference another object, and the proxy object can play a mediation role between the client and the target
What is polymorphism?Polymorphism (Polymorphism) is a very long word, but it represents a very simple concept.Polymorphism describes how classes have different functions in Object-Oriented Programming modes, while sharing a common interface.The
This article describes how to use interfaces, virtual, abstract, override, and new (modifier. The interface can only contain methods, properties, events, and indexes. The class that implements the interface must implement interface members. It only
Abstract Factory mode, Abstract Factory, which belongs to the object creation mode by GOF. It is used to provide an interface for creating a series of related or mutually dependent objects without specifying the classes they implement, the
PHP Object-oriented Learning II: In-depth understanding of object-oriented advanced features
static methods (Static) and properties: Access to data and functionality through classes rather than objects
Static methods are functions that are used as
Decorator design Pattern
What is adorner mode
Decorator mode is to add decoration to an existing structure. Decorating mode is the ability to dynamically extend an object without having to change the original class file and use inheritance. It is
Similarities:(1) can be inherited(2) cannot be instantiated.(3) All methods can contain method declarations.(4) The derived class must implement the unimplemented method.Partition:(1) abstract base classes can define fields, attributes, and methods.
Abstract class is a templateAbstract class db{/*Parameters: SQL statementsReturn value: An array of indexes*/Abstract public Function test ($STR); No method body/*Parameters: SQL statementsReturn value: An array of indexes*/Abstract public Function
Experiment two object-oriented programmingDirectory
First, the experimental report cover
Second, the specific experimental content
(i) Object-oriented programming-1 Initial mastery of unit testing and TDD
(ii)
member Inner class:Equivalent to a non-static member of a class, which can be decorated with permission modifiers, including private, protected, public.1. Define the member inner classClass Outter {Non-static inner classClass Inner {Inner class
Java proxy mode and dynamic proxy class 2005-03-08 14:22 7483 people read reviews (3) Favorite Report Javaobjectclassinterfaceimportconstructor Understanding of proxy mode and Java Dynamic proxy class1. Proxy ModeThe role of proxy mode is to provide
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