Contoh Program Oop Php Video

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I currently have a fairly large application written entirely with procedural PHP. I am looking to further my PHP experience and recode a majority of my application using object-oriented techniques.There are a lot of areas where OOP can help reduce the amount of code and make it easier to read. However, I have a few questions.1) It is my understanding that one class is used as a blueprint for any number of objects, but any one class represents only one object, never more than one. So one class could represent a player, but never multiple players.2) Since I will have quite a few different classes to include, do I use a 'Loader' class to load them all using splautoloadregister or do I just use splautoloadregister in the program files for my application?Edit: So my autoloader would be a class that I then create an instance of to start the autoloading or simply a php file with the function and the splautoloadregister that I would include to avoid repeating the same code in multiple files?3) Some of my classes depend on other classes. I've never encountered this before, so I honestly do not know the answer.

If I include all the classes in my main program file, but my player class does not include the class which it needs to function, will the player class work since the main program has included the class which player depends on?Edit: So even though one class may instantiate an object of type Player, and the Player class is not directly included by this class, it will still work because the controller class does include the Player class?4) There are multiple cases where I will need to work on the objects I am creating. I am wondering how I should do that. For example, in my Player class I will sometimes need to send something from one Player to the other Player. So, do I implement a static method in the Player class that takes two Players as parameters and does the transfer or do I do something else?Edit: Okay, so avoid static methods. Now I have a serious problem: I have methods that are ran multiple times in my application, but I cannot implement them as static methods. Am I supposed to implement them as instance methods? For example, sending from one Player to another.

Would I create an instance method that takes a Player object and sends either to it or from it?5) I have a lot of methods that don't really belong to any one instance of a class nor are they really appropriate as static methods. Should these be declared in their own class as static methods as Common or similar? What is the done in practice in this situation?Edit: Would these methods belong in the specific application file for which they are used or perhaps stored in their own 'functions.php' file?6) I'd like to learn how to use namespaces, but my code will never be used by others and I will never use anyone else's code in my application. Are namespaces an unncessary addition in my application or would it be a good idea to learn how to use them? Regardless, does one application have one namespace (the application name?) or does each class belong to it's own namespace?7) Lastly, is it common to have one class for database connections and also a class for network methods? My application needs both. I think the main problem I am having with converting my code to use object-oriented techniques is determining which methods to put where, as currently they are all in one monolithic file.Thanks for any help and insight you can provide.

1) It is my understanding that one class is used as a blueprint for any number of objects, but any one class represents only one object, never more than one. So one class could represent a player, but never multiple players.A class doesn't represent anything because as you correctly stated it is just a blueprint for any number of objects. You can have multiple instances (objects) of the same class representing multiple players.2) Since I will have quite a few different classes to include, do I use a 'Loader' class to load them all using splautoloadregister or do I just use splautoloadregister in the program files for my application?Without knowing what you mean by 'program files for my application' I say yes. Use an autoloader, because it just works and you don't have to worry about doing require.3) Some of my classes depend on other classes.

I've never encountered this before, so I honestly do not know the answer. If I include all the classes in my main program file, but my player class does not include the class which it needs to function, will the player class work since the main program has included the class which player depends on?You don't want to load all the classes, but only the ones you are going to use. Which again is not something you have to worry about when using an autoloader.

But yes once a class is loaded it can be instantiate throughout the application.Normally you would want to start the autploader in the.4) There are multiple cases where I will need to work on the objects I am creating. I am wondering how I should do that. For example, in my Player class I will sometimes need to send something from one Player to the other Player.

So, do I implement a static method in the Player class that takes two Players as parameters and does the transfer or do I do something else?Avoid using static methods in OOP PHP. It is almost never needed.

You could think about having another class which act like a pool of players which takes care of 'sending data' from one player to another.So it doesn't matter where the file with the class is included as long as it happens before trying to instantiate it.5) I have a lot of methods that don't really belong to any one instance of a class nor are they really appropriate as static methods. Should these be declared in their own class as static methods as Common or similar? What is the done in practice in this situation?Again please don't use static methods. If you use them inside some other class you are only making it hard to unit test your classes and you introduce hidden dependencies. In my experience it almost never happens to just have a single method somewhere for something.

Perhaps you're methods are doing too much.But that is hard to tell by just reading your question. Maybe you can give an example in a comment?6) I'd like to learn how to use namespaces, but my code will never be used by others and I will never use anyone else's code in my application. Are namespaces an unncessary addition in my application or would it be a good idea to learn how to use them?Namespacing in PHP is about structuring. Although nobody else will use your code you don't have to worry yourself about using the same name for a class somewhere.

Which will happen once the application grows larger rather sooner than later.Regardless, does one application have one namespace (the application name?) or does each class belong to it's own namespace?I often follow when it comes to namespaces.7) Lastly, is it common to have one class for database connections and also a class for network methods? My application needs both. I think the main problem I am having with converting my code to use object-oriented techniques is determining which methods to put where, as currently they are all in one monolithic file.Just keep the in mind and in general.Also I highly suggest to watch and keep watching them until you understand it.A PlayerCollection would be a valid class. Of course an object of it is one collection of multiple players.Use splautoloadregister, period. Best follow the standard and use any PSR-0 compliant existing autoloader (i.e. ).It will work. But since you use an autoloader (see 2.) you don't have to care about including classes at all.Sending a message from player 1 to player 2 is easily translated in calling a method of player 2 in player 1.

However, 'sending things' and 'work on the objects' could mean many things so the answer is: it depends. But in general it's good advice to avoid static methods.This sounds a lot like procedural thinking.

I'm sorry but I can't give you a silver bullet answer here, you will have to learn and understand the principles of object oriented design to apply them. There is a some standard literature and lot of useful resources on the web. Also learning by example might be useful (look at other OO applications and framework that are open sourced).' does one application have one namespace (the application name?) or does each class belong to it's own namespace?'

- the answer is in between. Namespaces are useful to group things together that work together and they are useful regardless of who will use or see the code.First rule of object oriented design: One class, one responsibility.

Output:New Delhi is the capital of India.Hindi is the most widely spoken language of India.India is a developing country.Washington, D.C. Is the capital of USA.English is the primary language of USA.USA is a developed country.Polymorphism with Inheritance:In Python, Polymorphism lets us define methods in the child class that have the same name as the methods in the parent class. In inheritance, the child class inherits the methods from the parent class. However, it is possible to modify a method in a child class that it has inherited from the parent class.

Samsung external dvd writer se-s084 driver for mac. This is particularly useful in cases where the method inherited from the parent class doesn’t quite fit the child class. In such cases, we re-implement the method in the child class. This process of re-implementing a method in the child class is known as Method Overriding. Output:There are many types of birds.Most of the birds can fly but some cannot.There are many types of birds.Sparrows can fly.There are many types of birds.Ostriches cannot fly.Polymorphism with a Function and objects:It is also possible to create a function that can take any object, allowing for polymorphism. In this example, let’s create a function called “func” which will take an object which we will name “obj”. Though we are using the name ‘obj’, any instantiated object will be able to be called into this function.

Yaesu ft 7900 r software for mac. No more 'function key Frustration' as you try to setup a feature from the face of the radio. The RT Systems Programming software makes it easy to set up memory channel details including manes and tones, limit memories for Programmable scanning functions, memory banks, DTMF memories, Hypermemory options, ARTS settings, programmable keys that can be customized for your use, and options for scanning.Features of the radio are laid out on the screen for you to easily see and set. ADMS-2K Programming System works with authentic versions of this radio worldwide including the FT-7800M, FT-7800R and FT-7800E.Just wanted to do a video showing how to use some software to program the Yaesu FT7900.

Next, lets give the function something to do that uses the ‘obj’ object we passed to it. In this case lets call the three methods, viz., capital, language and type, each of which is defined in the two classes ‘India’ and ‘USA’. Next, let’s create instantiations of both the ‘India’ and ‘USA’ classes if we don’t have them already. With those, we can call their action using the same func function.